20122100122201 has 16 divisors (see below), whose sum is σ = 25369173371520. Its totient is φ = 15503383716480.

The previous prime is 20122100122199. The next prime is 20122100122247. The reversal of 20122100122201 is 10222100122102.

It is a happy number.

It is not a de Polignac number, because 20122100122201 - 2¹ = 20122100122199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122100122261) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1468116606 + ... + 1468130311.

It is an arithmetic number, because the mean of its divisors is an integer number (1585573335720).

Almost surely, 2^{20122100122201} is an apocalyptic number.

It is an amenable number.

20122100122201 is a deficient number, since it is larger than the sum of its proper divisors (5247073249319).

20122100122201 is a wasteful number, since it uses less digits than its factorization.

20122100122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936247024.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122100122201 its reverse (10222100122102), we get a palindrome (30344200244303).

Subtracting from 20122100122201 its reverse (10222100122102), we obtain a palindrome (9900000000099).

The spelling of 20122100122201 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, one hundred twenty-two thousand, two hundred one".