20101022222201 has 4 divisors (see below), whose sum is σ = 20101062460752. Its totient is φ = 20100981983652.

The previous prime is 20101022222189. The next prime is 20101022222257. The reversal of 20101022222201 is 10222222010102.

It is a happy number.

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 20101022222201 - 2³⁴ = 20083842353017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20101022222201.

It is not an unprimeable number, because it can be changed into a prime (20101022228201) 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 3 ways as a sum of consecutive naturals, for example, 19360415 + ... + 20372228.

It is an arithmetic number, because the mean of its divisors is an integer number (5025265615188).

Almost surely, 2^{20101022222201} is an apocalyptic number.

It is an amenable number.

20101022222201 is a deficient number, since it is larger than the sum of its proper divisors (40238551).

20101022222201 is an equidigital number, since it uses as much as digits as its factorization.

20101022222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40238550.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20101022222201 its reverse (10222222010102), we get a palindrome (30323244232303).

The spelling of 20101022222201 in words is "twenty trillion, one hundred one billion, twenty-two million, two hundred twenty-two thousand, two hundred one".