21100201102 has 8 divisors (see below), whose sum is σ = 31656171456. Its totient is φ = 10548143952.

The previous prime is 21100200997. The next prime is 21100201139. The reversal of 21100201102 is 20110200112.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964783 + ... + 986410.

It is an arithmetic number, because the mean of its divisors is an integer number (3957021432).

Almost surely, 2^21100201102 is an apocalyptic number.

21100201102 is a deficient number, since it is larger than the sum of its proper divisors (10555970354).

21100201102 is a wasteful number, since it uses less digits than its factorization.

21100201102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956602.

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

Adding to 21100201102 its reverse (20110200112), we get a palindrome (41210401214).

The spelling of 21100201102 in words is "twenty-one billion, one hundred million, two hundred one thousand, one hundred two".