1222212010112 has 64 divisors (see below), whose sum is σ = 2519140440600. Its totient is φ = 589962240000.

The previous prime is 1222212010109. The next prime is 1222212010127. The reversal of 1222212010112 is 2110102122221.

It can be written as a sum of positive squares in 4 ways, for example, as 1202145587776 + 20066422336 = 1096424^2 + 141656^2 .

It is a tau number, because it is divible by the number of its divisors (64).

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, 43791362 + ... + 43819262.

Almost surely, 2^{1222212010112} is an apocalyptic number.

It is an amenable number.

1222212010112 is an abundant number, since it is smaller than the sum of its proper divisors (1296928430488).

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

1222212010112 is a wasteful number, since it uses less digits than its factorization.

1222212010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39745 (or 39733 counting only the distinct ones).

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

Adding to 1222212010112 its reverse (2110102122221), we get a palindrome (3332314132333).

The spelling of 1222212010112 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, ten thousand, one hundred twelve".