122111110012 has 6 divisors (see below), whose sum is σ = 213694442528. Its totient is φ = 61055555004.

The previous prime is 122111110001. The next prime is 122111110021. The reversal of 122111110012 is 210011111221.

It is a happy number.

It is a super-2 number, since 2×122111110012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111109974 and 122111110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15263888748 + ... + 15263888755.

Almost surely, 2^122111110012 is an apocalyptic number.

It is an amenable number.

122111110012 is a deficient number, since it is larger than the sum of its proper divisors (91583332516).

122111110012 is a wasteful number, since it uses less digits than its factorization.

122111110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30527777507 (or 30527777505 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122111110012 its reverse (210011111221), we get a palindrome (332122221233).

The spelling of 122111110012 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred ten thousand, twelve".