210220121121200 has 30 divisors (see below), whose sum is σ = 505053840994644. Its totient is φ = 84088048448320.

The previous prime is 210220121121191. The next prime is 210220121121229. The reversal of 210220121121200 is 2121121022012.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262775151002 + ... + 262775151801.

Almost surely, 2^{210220121121200} is an apocalyptic number.

210220121121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220121121200 is an abundant number, since it is smaller than the sum of its proper divisors (294833719873444).

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

210220121121200 is a wasteful number, since it uses less digits than its factorization.

210220121121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525550302821 (or 525550302810 counting only the distinct ones).

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

Adding to 210220121121200 its reverse (2121121022012), we get a palindrome (212341242143212).

The spelling of 210220121121200 in words is "two hundred ten trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred".