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12211210232130 = 2357134472970781
BaseRepresentation
bin1011000110110010010011…
…0110010010000101000010
31121020101021020101120210110
42301230210312102011002
53100032024304412010
641545430314212150
72400142113244020
oct261544466220502
947211236346713
1012211210232130
113988821915358
121452745724056
136a7687363ac0
14303050857710
15162995610120
hexb1b24d92142

12211210232130 has 64 divisors (see below), whose sum is σ = 36070036386048. Its totient is φ = 2576431169280.

The previous prime is 12211210232113. The next prime is 12211210232153. The reversal of 12211210232130 is 3123201211221.

It is a super-2 number, since 2×122112102321302 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12211210232097 and 12211210232106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2236482661 + ... + 2236488120.

It is an arithmetic number, because the mean of its divisors is an integer number (563594318532).

Almost surely, 212211210232130 is an apocalyptic number.

12211210232130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211210232130 is an abundant number, since it is smaller than the sum of its proper divisors (23858826153918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211210232130 is a wasteful number, since it uses less digits than its factorization.

12211210232130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472970811.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12211210232130 its reverse (3123201211221), we get a palindrome (15334411443351).

The spelling of 12211210232130 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, two hundred thirty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 4472970781 8945941562 13418912343 22364853905 26837824686 31310795467 44729707810 58148620153 62621590934 67094561715 93932386401 116297240306 134189123430 156553977335 174445860459 187864772802 290743100765 313107954670 348891720918 407040341071 469661932005 581486201530 814080682142 872229302295 939323864010 1221121023213 1744458604590 2035201705355 2442242046426 4070403410710 6105605116065 12211210232130