210101002000 has 80 divisors (see below), whose sum is σ = 511679750400. Its totient is φ = 83435683200.

The previous prime is 210101001989. The next prime is 210101002043. The reversal of 210101002000 is 200101012.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99880 + ... + 655879.

It is an arithmetic number, because the mean of its divisors is an integer number (6395996880).

Almost surely, 2^210101002000 is an apocalyptic number.

210101002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210101002000 is an abundant number, since it is smaller than the sum of its proper divisors (301578748400).

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

210101002000 is a wasteful number, since it uses less digits than its factorization.

210101002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755921 (or 755905 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 210101002000 its reverse (200101012), we get a palindrome (210301103012).

The spelling of 210101002000 in words is "two hundred ten billion, one hundred one million, two thousand".