10201220021000 has 64 divisors (see below), whose sum is σ = 23876490718080. Its totient is φ = 4079524612800.

The previous prime is 10201220020991. The next prime is 10201220021017. The reversal of 10201220021000 is 12002210201.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3040877 + ... + 5445123.

It is an arithmetic number, because the mean of its divisors is an integer number (373070167470).

Almost surely, 2^{10201220021000} is an apocalyptic number.

10201220021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201220021000 is an abundant number, since it is smaller than the sum of its proper divisors (13675270697080).

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

10201220021000 is a wasteful number, since it uses less digits than its factorization.

10201220021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408511 (or 2408497 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10201220021000 its reverse (12002210201), we get a palindrome (10213222231201).

The spelling of 10201220021000 in words is "ten trillion, two hundred one billion, two hundred twenty million, twenty-one thousand".