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12233214021 = 373107137811
BaseRepresentation
bin10110110010010100…
…00000100001000101
31011120112221122211210
423121022000201011
5200023200322041
65341520122033
7612102414000
oct133112004105
934515848753
1012233214021
11520836a836
122454a66319
1311cc57a9a2
148409a8537
154b8e8b016
hex2d9280845

12233214021 has 64 divisors (see below), whose sum is σ = 19363276800. Its totient is φ = 6866052480.

The previous prime is 12233214013. The next prime is 12233214061. The reversal of 12233214021 is 12041233221.

It is not a de Polignac number, because 12233214021 - 23 = 12233214013 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233214061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15083706 + ... + 15084516.

It is an arithmetic number, because the mean of its divisors is an integer number (302551200).

Almost surely, 212233214021 is an apocalyptic number.

It is an amenable number.

12233214021 is a deficient number, since it is larger than the sum of its proper divisors (7130062779).

12233214021 is a wasteful number, since it uses less digits than its factorization.

12233214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12233214021 its reverse (12041233221), we get a palindrome (24274447242).

The spelling of 12233214021 in words is "twelve billion, two hundred thirty-three million, two hundred fourteen thousand, twenty-one".

Divisors: 1 3 7 21 49 107 137 147 321 343 411 749 811 959 1029 2247 2433 2877 5243 5677 6713 14659 15729 17031 20139 36701 39739 43977 46991 86777 102613 110103 111107 119217 140973 260331 278173 307839 333321 607439 718291 777749 834519 1822317 2154873 2333247 4252073 5028037 5444243 11888449 12756219 15084111 16332729 29764511 35665347 38109701 83219143 89293533 114329103 249657429 582534001 1747602003 4077738007 12233214021