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2111021112212 = 221035123837651
BaseRepresentation
bin11110101110000010101…
…010011101101110010100
321110210220200122200221222
4132232002222131232110
5234041332401042322
64253442324425512
7305342033250035
oct36560252355624
97423820580858
102111021112212
11744308424691
122a1168848298
131240b7480b8c
1474261518a8c
1539da4a76e42
hex1eb82a9db94

2111021112212 has 12 divisors (see below), whose sum is σ = 3730153810656. Its totient is φ = 1045262880600.

The previous prime is 2111021112199. The next prime is 2111021112227. The reversal of 2111021112212 is 2122111201112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561918414 + ... + 2561919237.

It is an arithmetic number, because the mean of its divisors is an integer number (310846150888).

Almost surely, 22111021112212 is an apocalyptic number.

It is an amenable number.

2111021112212 is a deficient number, since it is larger than the sum of its proper divisors (1619132698444).

2111021112212 is a wasteful number, since it uses less digits than its factorization.

2111021112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123837758 (or 5123837756 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111021112212 its reverse (2122111201112), we get a palindrome (4233132313324).

The spelling of 2111021112212 in words is "two trillion, one hundred eleven billion, twenty-one million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 103 206 412 5123837651 10247675302 20495350604 527755278053 1055510556106 2111021112212