21020200211102 has 16 divisors (see below), whose sum is σ = 32648064357600. Its totient is φ = 10138190143200.

The previous prime is 21020200211093. The next prime is 21020200211111. The reversal of 21020200211102 is 20111200202012.

It is an interprime number because it is at equal distance from previous prime (21020200211093) and next prime (21020200211111).

It is a congruent 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, 169450274 + ... + 169574277.

It is an arithmetic number, because the mean of its divisors is an integer number (2040504022350).

Almost surely, 2^{21020200211102} is an apocalyptic number.

21020200211102 is a deficient number, since it is larger than the sum of its proper divisors (11627864146498).

21020200211102 is a wasteful number, since it uses less digits than its factorization.

21020200211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339025651.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21020200211102 its reverse (20111200202012), we get a palindrome (41131400413114).

The spelling of 21020200211102 in words is "twenty-one trillion, twenty billion, two hundred million, two hundred eleven thousand, one hundred two".