112121210122 has 16 divisors (see below), whose sum is σ = 168486284232. Its totient is φ = 55959171840.

The previous prime is 112121210063. The next prime is 112121210239. The reversal of 112121210122 is 221012121211.

It can be written as a sum of positive squares in 4 ways, for example, as 105995173761 + 6126036361 = 325569^2 + 78269^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112121210096 and 112121210105.

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, 4636222 + ... + 4660342.

Almost surely, 2^112121210122 is an apocalyptic number.

112121210122 is a deficient number, since it is larger than the sum of its proper divisors (56365074110).

112121210122 is a wasteful number, since it uses less digits than its factorization.

112121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28233.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121210122 its reverse (221012121211), we get a palindrome (333133331333).

The spelling of 112121210122 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".