1020011112200 has 24 divisors (see below), whose sum is σ = 2371525836330. Its totient is φ = 408004444800.

The previous prime is 1020011112193. The next prime is 1020011112349. The reversal of 1020011112200 is 22111100201.

It can be written as a sum of positive squares in 3 ways, for example, as 865164140164 + 154846972036 = 930142^2 + 393506^2 .

It is a super-2 number, since 2×1020011112200² (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 5 ways as a sum of consecutive naturals, for example, 2550027581 + ... + 2550027980.

Almost surely, 2^{1020011112200} is an apocalyptic number.

1020011112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020011112200 is an abundant number, since it is smaller than the sum of its proper divisors (1351514724130).

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

1020011112200 is a wasteful number, since it uses less digits than its factorization.

1020011112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100055577 (or 5100055568 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020011112200 its reverse (22111100201), we get a palindrome (1042122212401).

The spelling of 1020011112200 in words is "one trillion, twenty billion, eleven million, one hundred twelve thousand, two hundred".