121020202012 has 12 divisors (see below), whose sum is σ = 211964688936. Its totient is φ = 60458862320.

The previous prime is 121020201997. The next prime is 121020202019. The reversal of 121020202012 is 210202020121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121020201983 and 121020202001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020202019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12804358 + ... + 12813805.

It is an arithmetic number, because the mean of its divisors is an integer number (17663724078).

Almost surely, 2^121020202012 is an apocalyptic number.

It is an amenable number.

121020202012 is a deficient number, since it is larger than the sum of its proper divisors (90944486924).

121020202012 is a wasteful number, since it uses less digits than its factorization.

121020202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25619348 (or 25619346 counting only the distinct ones).

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

Adding to 121020202012 its reverse (210202020121), we get a palindrome (331222222133).

The spelling of 121020202012 in words is "one hundred twenty-one billion, twenty million, two hundred two thousand, twelve".