121122020012 has 24 divisors (see below), whose sum is σ = 242326127904. Its totient is φ = 51891846912.

The previous prime is 121122019999. The next prime is 121122020029. The reversal of 121122020012 is 210020221121.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 648653 + ... + 814244.

It is an arithmetic number, because the mean of its divisors is an integer number (10096921996).

Almost surely, 2^121122020012 is an apocalyptic number.

It is an amenable number.

121122020012 is an abundant number, since it is smaller than the sum of its proper divisors (121204107892).

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

121122020012 is a wasteful number, since it uses less digits than its factorization.

121122020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465865 (or 1465863 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121122020012 its reverse (210020221121), we get a palindrome (331142241133).

The spelling of 121122020012 in words is "one hundred twenty-one billion, one hundred twenty-two million, twenty thousand, twelve".