121202020012 has 48 divisors (see below), whose sum is σ = 224573388480. Its totient is φ = 57117063168.

The previous prime is 121202019997. The next prime is 121202020019. The reversal of 121202020012 is 210020202121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121202019974 and 121202020001.

It is not an unprimeable number, because it can be changed into a prime (121202020019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7439908 + ... + 7456180.

It is an arithmetic number, because the mean of its divisors is an integer number (4678612260).

Almost surely, 2^121202020012 is an apocalyptic number.

It is an amenable number.

121202020012 is a deficient number, since it is larger than the sum of its proper divisors (103371368468).

121202020012 is a wasteful number, since it uses less digits than its factorization.

121202020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17482 (or 17480 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121202020012 its reverse (210020202121), we get a palindrome (331222222133).

The spelling of 121202020012 in words is "one hundred twenty-one billion, two hundred two million, twenty thousand, twelve".