210021000002 has 16 divisors (see below), whose sum is σ = 347811341472. Its totient is φ = 94313920320.

The previous prime is 210020999999. The next prime is 210021000019. The reversal of 210021000002 is 200000120012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57506663 + ... + 57510314.

It is an arithmetic number, because the mean of its divisors is an integer number (21738208842).

Almost surely, 2^210021000002 is an apocalyptic number.

210021000002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210021000002 is a deficient number, since it is larger than the sum of its proper divisors (137790341470).

210021000002 is a wasteful number, since it uses less digits than its factorization.

210021000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115017073.

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

Adding to 210021000002 its reverse (200000120012), we get a palindrome (410021120014).

The spelling of 210021000002 in words is "two hundred ten billion, twenty-one million, two", and thus it is an aban number.