1001120202100 has 36 divisors (see below), whose sum is σ = 2176891788064. Its totient is φ = 399625786080.

The previous prime is 1001120202041. The next prime is 1001120202163. The reversal of 1001120202100 is 12020211001.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 10229742 + ... + 10327141.

Almost surely, 2^{1001120202100} is an apocalyptic number.

1001120202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001120202100 is an abundant number, since it is smaller than the sum of its proper divisors (1175771585964).

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

1001120202100 is a wasteful number, since it uses less digits than its factorization.

1001120202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20557384 (or 20557377 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001120202100 its reverse (12020211001), we get a palindrome (1013140413101).

The spelling of 1001120202100 in words is "one trillion, one billion, one hundred twenty million, two hundred two thousand, one hundred".