21010201102 has 32 divisors (see below), whose sum is σ = 36685624320. Its totient is φ = 8923504320.

The previous prime is 21010201063. The next prime is 21010201133. The reversal of 21010201102 is 20110201012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313758 + ... + 374785.

It is an arithmetic number, because the mean of its divisors is an integer number (1146425760).

Almost surely, 2^21010201102 is an apocalyptic number.

21010201102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21010201102 is a deficient number, since it is larger than the sum of its proper divisors (15675423218).

21010201102 is a wasteful number, since it uses less digits than its factorization.

21010201102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688648.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21010201102 its reverse (20110201012), we get a palindrome (41120402114).

The spelling of 21010201102 in words is "twenty-one billion, ten million, two hundred one thousand, one hundred two".