121021021020212 has 24 divisors (see below), whose sum is σ = 213456709960704. Its totient is φ = 60033399918912.

The previous prime is 121021021020197. The next prime is 121021021020233. The reversal of 121021021020212 is 212020120120121.

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, 47499608 + ... + 49982544.

It is an arithmetic number, because the mean of its divisors is an integer number (8894029581696).

Almost surely, 2^{121021021020212} is an apocalyptic number.

It is an amenable number.

121021021020212 is a deficient number, since it is larger than the sum of its proper divisors (92435688940492).

121021021020212 is a wasteful number, since it uses less digits than its factorization.

121021021020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579015 (or 2579013 counting only the distinct ones).

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

Adding to 121021021020212 its reverse (212020120120121), we get a palindrome (333041141140333).

Subtracting 121021021020212 from its reverse (212020120120121), we obtain a palindrome (90999099099909).

The spelling of 121021021020212 in words is "one hundred twenty-one trillion, twenty-one billion, twenty-one million, twenty thousand, two hundred twelve".