20110222101021 has 32 divisors (see below), whose sum is σ = 30396879891840. Its totient is φ = 11723845319424.

The previous prime is 20110222100987. The next prime is 20110222101061. The reversal of 20110222101021 is 12010122201102.

It is not a de Polignac number, because 20110222101021 - 2⁹ = 20110222100509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110222101061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27060015 + ... + 27793251.

It is an arithmetic number, because the mean of its divisors is an integer number (949902496620).

Almost surely, 2^{20110222101021} is an apocalyptic number.

It is an amenable number.

20110222101021 is a deficient number, since it is larger than the sum of its proper divisors (10286657790819).

20110222101021 is a wasteful number, since it uses less digits than its factorization.

20110222101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770285.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110222101021 its reverse (12010122201102), we get a palindrome (32120344302123).

The spelling of 20110222101021 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, one hundred one thousand, twenty-one".