20120100122201 has 16 divisors (see below), whose sum is σ = 20698909922880. Its totient is φ = 19549884004800.

The previous prime is 20120100122197. The next prime is 20120100122257. The reversal of 20120100122201 is 10222100102102.

It is a cyclic number.

It is not a de Polignac number, because 20120100122201 - 2² = 20120100122197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20120100122261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621935 + ... + 6373931.

It is an arithmetic number, because the mean of its divisors is an integer number (1293681870180).

Almost surely, 2^{20120100122201} is an apocalyptic number.

It is an amenable number.

20120100122201 is a deficient number, since it is larger than the sum of its proper divisors (578809800679).

20120100122201 is a wasteful number, since it uses less digits than its factorization.

20120100122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752744.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120100122201 its reverse (10222100102102), we get a palindrome (30342200224303).

The spelling of 20120100122201 in words is "twenty trillion, one hundred twenty billion, one hundred million, one hundred twenty-two thousand, two hundred one".