12122001112 has 16 divisors (see below), whose sum is σ = 24477117840. Its totient is φ = 5594769696.

The previous prime is 12122001091. The next prime is 12122001139. The reversal of 12122001112 is 21110022121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12122001092 and 12122001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58278748 + ... + 58278955.

It is an arithmetic number, because the mean of its divisors is an integer number (1529819865).

Almost surely, 2^12122001112 is an apocalyptic number.

It is an amenable number.

12122001112 is an abundant number, since it is smaller than the sum of its proper divisors (12355116728).

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

12122001112 is a wasteful number, since it uses less digits than its factorization.

12122001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116557722 (or 116557718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12122001112 its reverse (21110022121), we get a palindrome (33232023233).

The spelling of 12122001112 in words is "twelve billion, one hundred twenty-two million, one thousand, one hundred twelve".