20101100102201 has 4 divisors (see below), whose sum is σ = 20115186368592. Its totient is φ = 20087013835812.

The previous prime is 20101100102197. The next prime is 20101100102219. The reversal of 20101100102201 is 10220100110102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20101100102201 - 2² = 20101100102197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101100102101) 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, 7043131055 + ... + 7043133908.

It is an arithmetic number, because the mean of its divisors is an integer number (5028796592148).

Almost surely, 2^{20101100102201} is an apocalyptic number.

It is an amenable number.

20101100102201 is a deficient number, since it is larger than the sum of its proper divisors (14086266391).

20101100102201 is a wasteful number, since it uses less digits than its factorization.

20101100102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086266390.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20101100102201 its reverse (10220100110102), we get a palindrome (30321200212303).

The spelling of 20101100102201 in words is "twenty trillion, one hundred one billion, one hundred million, one hundred two thousand, two hundred one".