20110022202221 has 16 divisors (see below), whose sum is σ = 23059999672320. Its totient is φ = 17179339492080.

The previous prime is 20110022202203. The next prime is 20110022202233. The reversal of 20110022202221 is 12220222001102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110022202221 - 2³⁴ = 20092842333037 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 20110022202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110022202271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15048770 + ... + 16330508.

It is an arithmetic number, because the mean of its divisors is an integer number (1441249979520).

Almost surely, 2^{20110022202221} is an apocalyptic number.

It is an amenable number.

20110022202221 is a deficient number, since it is larger than the sum of its proper divisors (2949977470099).

20110022202221 is a wasteful number, since it uses less digits than its factorization.

20110022202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289264.

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

Adding to 20110022202221 its reverse (12220222001102), we get a palindrome (32330244203323).

The spelling of 20110022202221 in words is "twenty trillion, one hundred ten billion, twenty-two million, two hundred two thousand, two hundred twenty-one".