21002210001102 has 32 divisors (see below), whose sum is σ = 45823188948480. Its totient is φ = 6364280323520.

The previous prime is 21002210001089. The next prime is 21002210001109. The reversal of 21002210001102 is 20110001220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002210001109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21562843 + ... + 22515785.

It is an arithmetic number, because the mean of its divisors is an integer number (1431974654640).

Almost surely, 2^{21002210001102} is an apocalyptic number.

21002210001102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002210001102 is an abundant number, since it is smaller than the sum of its proper divisors (24820978947378).

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

21002210001102 is a wasteful number, since it uses less digits than its factorization.

21002210001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286888.

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

Adding to 21002210001102 its reverse (20110001220012), we get a palindrome (41112211221114).

The spelling of 21002210001102 in words is "twenty-one trillion, two billion, two hundred ten million, one thousand, one hundred two".