122112211111012 has 18 divisors (see below), whose sum is σ = 223391478836918. Its totient is φ = 58401492269472.

The previous prime is 122112211110979. The next prime is 122112211111057. The reversal of 122112211111012 is 210111112211221.

It can be written as a sum of positive squares in only one way, i.e., 119673447895296 + 2438763215716 = 10939536^2 + 1561654^2 .

It is a super-2 number, since 2×122112211111012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28854490113 + ... + 28854494344.

Almost surely, 2^{122112211111012} is an apocalyptic number.

It is an amenable number.

122112211111012 is a deficient number, since it is larger than the sum of its proper divisors (101279267725906).

122112211111012 is a wasteful number, since it uses less digits than its factorization.

122112211111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57708984507 (or 57708984482 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 122112211111012 its reverse (210111112211221), we get a palindrome (332223323322233).

The spelling of 122112211111012 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred eleven million, one hundred eleven thousand, twelve".