21021201002010 has 64 divisors (see below), whose sum is σ = 55074043584000. Its totient is φ = 5092648975680.

The previous prime is 21021201001993. The next prime is 21021201002027. The reversal of 21021201002010 is 1020010212012.

It is an interprime number because it is at equal distance from previous prime (21021201001993) and next prime (21021201002027).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20753032 + ... + 21742371.

It is an arithmetic number, because the mean of its divisors is an integer number (860531931000).

Almost surely, 2^{21021201002010} is an apocalyptic number.

21021201002010 is an abundant number, since it is smaller than the sum of its proper divisors (34052842581990).

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

21021201002010 is a wasteful number, since it uses less digits than its factorization.

21021201002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42496923.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21021201002010 its reverse (1020010212012), we get a palindrome (22041211214022).

The spelling of 21021201002010 in words is "twenty-one trillion, twenty-one billion, two hundred one million, two thousand, ten".