21023001021202 has 16 divisors (see below), whose sum is σ = 33336676582560. Its totient is φ = 9915524308512.

The previous prime is 21023001021173. The next prime is 21023001021223. The reversal of 21023001021202 is 20212010032012.

It is a happy number.

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, 1187194728 + ... + 1187212435.

It is an arithmetic number, because the mean of its divisors is an integer number (2083542286410).

Almost surely, 2^{21023001021202} is an apocalyptic number.

21023001021202 is a deficient number, since it is larger than the sum of its proper divisors (12313675561358).

21023001021202 is a wasteful number, since it uses less digits than its factorization.

21023001021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374407417.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21023001021202 its reverse (20212010032012), we get a palindrome (41235011053214).

The spelling of 21023001021202 in words is "twenty-one trillion, twenty-three billion, one million, twenty-one thousand, two hundred two".