1021220313200 has 30 divisors (see below), whose sum is σ = 2453481803424. Its totient is φ = 408488125120.

The previous prime is 1021220313199. The next prime is 1021220313221. The reversal of 1021220313200 is 23130221201.

It is a congruent number.

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, 1276524992 + ... + 1276525791.

Almost surely, 2^{1021220313200} is an apocalyptic number.

1021220313200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021220313200 is an abundant number, since it is smaller than the sum of its proper divisors (1432261490224).

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

1021220313200 is a wasteful number, since it uses less digits than its factorization.

1021220313200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553050801 (or 2553050790 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1021220313200 its reverse (23130221201), we get a palindrome (1044350534401).

The spelling of 1021220313200 in words is "one trillion, twenty-one billion, two hundred twenty million, three hundred thirteen thousand, two hundred".