21102201102 has 8 divisors (see below), whose sum is σ = 42204402216. Its totient is φ = 7034067032.

The previous prime is 21102201101. The next prime is 21102201137. The reversal of 21102201102 is 20110220112.

21102201102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

21102201102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102201101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758516753 + ... + 1758516764.

It is an arithmetic number, because the mean of its divisors is an integer number (5275550277).

Almost surely, 2^21102201102 is an apocalyptic number.

21102201102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21102201102 is a wasteful number, since it uses less digits than its factorization.

21102201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517033522.

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

Adding to 21102201102 its reverse (20110220112), we get a palindrome (41212421214).

It can be divided in two parts, 2110220110 and 2, that added together give a palindrome (2110220112).

The spelling of 21102201102 in words is "twenty-one billion, one hundred two million, two hundred one thousand, one hundred two".