21100000201102 has 4 divisors (see below), whose sum is σ = 31650000301656. Its totient is φ = 10550000100550.

The previous prime is 21100000201097. The next prime is 21100000201141. The reversal of 21100000201102 is 20110200000112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275000050274 + ... + 5275000050277.

It is an arithmetic number, because the mean of its divisors is an integer number (7912500075414).

Almost surely, 2^{21100000201102} is an apocalyptic number.

21100000201102 is a deficient number, since it is larger than the sum of its proper divisors (10550000100554).

21100000201102 is a wasteful number, since it uses less digits than its factorization.

21100000201102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550000100553.

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

Adding to 21100000201102 its reverse (20110200000112), we get a palindrome (41210200201214).

The spelling of 21100000201102 in words is "twenty-one trillion, one hundred billion, two hundred one thousand, one hundred two".