20010222222101 has 4 divisors (see below), whose sum is σ = 20011018610592. Its totient is φ = 20009425833612.

The previous prime is 20010222222097. The next prime is 20010222222149. The reversal of 20010222222101 is 10122222201002.

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 20010222222101 - 2² = 20010222222097 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 20010222222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010222224101) 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, 398156555 + ... + 398206808.

It is an arithmetic number, because the mean of its divisors is an integer number (5002754652648).

Almost surely, 2^{20010222222101} is an apocalyptic number.

It is an amenable number.

20010222222101 is a deficient number, since it is larger than the sum of its proper divisors (796388491).

20010222222101 is an equidigital number, since it uses as much as digits as its factorization.

20010222222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796388490.

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

Adding to 20010222222101 its reverse (10122222201002), we get a palindrome (30132444423103).

The spelling of 20010222222101 in words is "twenty trillion, ten billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred one".