210001100022000 has 480 divisors, whose sum is σ = 860899663787904. Its totient is φ = 46702946304000.

The previous prime is 210001100021899. The next prime is 210001100022047. The reversal of 210001100022000 is 220001100012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17860641 + ... + 27184640.

Almost surely, 2^{210001100022000} is an apocalyptic number.

210001100022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210001100022000 is an abundant number, since it is smaller than the sum of its proper divisors (650898563765904).

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

210001100022000 is a wasteful number, since it uses less digits than its factorization.

210001100022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45045354 (or 45045335 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210001100022000 its reverse (220001100012), we get a palindrome (210221101122012).

It can be divided in two parts, 210001 and 100022000, that added together give a palindrome (100232001).

The spelling of 210001100022000 in words is "two hundred ten trillion, one billion, one hundred million, twenty-two thousand".