111212010122 has 16 divisors (see below), whose sum is σ = 167321790720. Its totient is φ = 55438153008.

The previous prime is 111212010061. The next prime is 111212010197. The reversal of 111212010122 is 221010212111.

It is a super-2 number, since 2×111212010122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111212010097 and 111212010106.

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, 3543503 + ... + 3574749.

It is an arithmetic number, because the mean of its divisors is an integer number (10457611920).

Almost surely, 2^111212010122 is an apocalyptic number.

111212010122 is a deficient number, since it is larger than the sum of its proper divisors (56109780598).

111212010122 is a wasteful number, since it uses less digits than its factorization.

111212010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36565.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111212010122 its reverse (221010212111), we get a palindrome (332222222233).

The spelling of 111212010122 in words is "one hundred eleven billion, two hundred twelve million, ten thousand, one hundred twenty-two".