202110121012 has 12 divisors (see below), whose sum is σ = 355250831040. Its totient is φ = 100609883576.

The previous prime is 202110121001. The next prime is 202110121061. The reversal of 202110121012 is 210121011202.

It is a junction number, because it is equal to n+sod(n) for n = 202110120983 and 202110121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111293212 + ... + 111295027.

It is an arithmetic number, because the mean of its divisors is an integer number (29604235920).

Almost surely, 2^202110121012 is an apocalyptic number.

It is an amenable number.

202110121012 is a deficient number, since it is larger than the sum of its proper divisors (153140710028).

202110121012 is a wasteful number, since it uses less digits than its factorization.

202110121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222588470 (or 222588468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202110121012 its reverse (210121011202), we get a palindrome (412231132214).

The spelling of 202110121012 in words is "two hundred two billion, one hundred ten million, one hundred twenty-one thousand, twelve".