21211001102 has 16 divisors (see below), whose sum is σ = 33333038592. Its totient is φ = 10110200760.

The previous prime is 21211001093. The next prime is 21211001129. The reversal of 21211001102 is 20110011212.

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, 2548928 + ... + 2557235.

It is an arithmetic number, because the mean of its divisors is an integer number (2083314912).

Almost surely, 2^21211001102 is an apocalyptic number.

21211001102 is a deficient number, since it is larger than the sum of its proper divisors (12122037490).

21211001102 is a wasteful number, since it uses less digits than its factorization.

21211001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106263.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21211001102 its reverse (20110011212), we get a palindrome (41321012314).

The spelling of 21211001102 in words is "twenty-one billion, two hundred eleven million, one thousand, one hundred two".