121020211202012 has 12 divisors (see below), whose sum is σ = 211786899058560. Its totient is φ = 60509668613856.

The previous prime is 121020211201999. The next prime is 121020211202017. The reversal of 121020211202012 is 210202112020121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020211202017) 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, 108623273 + ... + 109731744.

It is an arithmetic number, because the mean of its divisors is an integer number (17648908254880).

Almost surely, 2^{121020211202012} is an apocalyptic number.

It is an amenable number.

121020211202012 is a deficient number, since it is larger than the sum of its proper divisors (90766687856548).

121020211202012 is a wasteful number, since it uses less digits than its factorization.

121020211202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218493580 (or 218493578 counting only the distinct ones).

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

Adding to 121020211202012 its reverse (210202112020121), we get a palindrome (331222323222133).

The spelling of 121020211202012 in words is "one hundred twenty-one trillion, twenty billion, two hundred eleven million, two hundred two thousand, twelve".