121122122012 has 24 divisors (see below), whose sum is σ = 212763481392. Its totient is φ = 60332659200.

The previous prime is 121122121999. The next prime is 121122122027. The reversal of 121122122012 is 210221221121.

It is a congruent number.

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, 5967962 + ... + 5988222.

It is an arithmetic number, because the mean of its divisors is an integer number (8865145058).

Almost surely, 2^121122122012 is an apocalyptic number.

It is an amenable number.

121122122012 is a deficient number, since it is larger than the sum of its proper divisors (91641359380).

121122122012 is a wasteful number, since it uses less digits than its factorization.

121122122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25829 (or 25827 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121122122012 its reverse (210221221121), we get a palindrome (331343343133).

The spelling of 121122122012 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, twelve".