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2011210112222 = 21397919913571
BaseRepresentation
bin11101010001000101011…
…101101101110011011110
321010021021200122112222122
4131101011131231303132
5230422424242042342
64135534232342542
7265206442613003
oct35210535556336
97107250575878
102011210112222
11705a49749043
12285952244a52
1311786bb7697c
146d4b36158aa
15374b22224d2
hex1d44576dcde

2011210112222 has 16 divisors (see below), whose sum is σ = 3038905900800. Its totient is φ = 998243321880.

The previous prime is 2011210112209. The next prime is 2011210112251. The reversal of 2011210112222 is 2222110121102.

It is a super-2 number, since 2×20112101122222 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011210112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744697 + ... + 2658267.

It is an arithmetic number, because the mean of its divisors is an integer number (189931618800).

Almost surely, 22011210112222 is an apocalyptic number.

2011210112222 is a deficient number, since it is larger than the sum of its proper divisors (1027695788578).

2011210112222 is a wasteful number, since it uses less digits than its factorization.

2011210112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921631.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2011210112222 its reverse (2222110121102), we get a palindrome (4233320233324).

The spelling of 2011210112222 in words is "two trillion, eleven billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 139 278 7919 15838 913571 1100741 1827142 2201482 126986369 253972738 7234568749 14469137498 1005605056111 2011210112222