21100110201102 has 32 divisors (see below), whose sum is σ = 45220930739712. Its totient is φ = 6539887685504.

The previous prime is 21100110201067. The next prime is 21100110201103. The reversal of 21100110201102 is 20110201100112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100110201103) 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, 1246159158 + ... + 1246176089.

It is an arithmetic number, because the mean of its divisors is an integer number (1413154085616).

Almost surely, 2^{21100110201102} is an apocalyptic number.

21100110201102 is an abundant number, since it is smaller than the sum of its proper divisors (24120820538610).

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

21100110201102 is a wasteful number, since it uses less digits than its factorization.

21100110201102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492335352.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21100110201102 its reverse (20110201100112), we get a palindrome (41210311301214).

The spelling of 21100110201102 in words is "twenty-one trillion, one hundred billion, one hundred ten million, two hundred one thousand, one hundred two".