21002010013210 has 16 divisors (see below), whose sum is σ = 37842550706592. Its totient is φ = 8392152298000.

The previous prime is 21002010013169. The next prime is 21002010013241. The reversal of 21002010013210 is 1231001020012.

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, 1081453216 + ... + 1081472635.

It is an arithmetic number, because the mean of its divisors is an integer number (2365159419162).

Almost surely, 2^{21002010013210} is an apocalyptic number.

21002010013210 is a deficient number, since it is larger than the sum of its proper divisors (16840540693382).

21002010013210 is a wasteful number, since it uses less digits than its factorization.

21002010013210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162926829.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21002010013210 its reverse (1231001020012), we get a palindrome (22233011033222).

The spelling of 21002010013210 in words is "twenty-one trillion, two billion, ten million, thirteen thousand, two hundred ten".