210121102002200 has 48 divisors (see below), whose sum is σ = 488532559679160. Its totient is φ = 84048269184000.

The previous prime is 210121102002181. The next prime is 210121102002221. The reversal of 210121102002200 is 2200201121012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150619880 + ... + 152008520.

Almost surely, 2^{210121102002200} is an apocalyptic number.

210121102002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210121102002200 is an abundant number, since it is smaller than the sum of its proper divisors (278411457676960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121102002200 is a wasteful number, since it uses less digits than its factorization.

210121102002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145228 (or 2145219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210121102002200 its reverse (2200201121012), we get a palindrome (212321303123212).

The spelling of 210121102002200 in words is "two hundred ten trillion, one hundred twenty-one billion, one hundred two million, two thousand, two hundred".