1021132220200 has 48 divisors (see below), whose sum is σ = 2375608693500. Its totient is φ = 408198904320.

The previous prime is 1021132220191. The next prime is 1021132220257. The reversal of 1021132220200 is 20222311201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 852028686916 + 169103533284 = 923054^2 + 411222^2 .

It is a super-2 number, since 2×1021132220200² (a number of 25 digits) contains 22 as substring.

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, 1264795 + ... + 1908394.

Almost surely, 2^{1021132220200} is an apocalyptic number.

1021132220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021132220200 is an abundant number, since it is smaller than the sum of its proper divisors (1354476473300).

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

1021132220200 is a wasteful number, since it uses less digits than its factorization.

1021132220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174814 (or 3174805 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021132220200 its reverse (20222311201), we get a palindrome (1041354531401).

The spelling of 1021132220200 in words is "one trillion, twenty-one billion, one hundred thirty-two million, two hundred twenty thousand, two hundred".