10122222202221 has 16 divisors (see below), whose sum is σ = 14590590564800. Its totient is φ = 6220199132928.

The previous prime is 10122222202217. The next prime is 10122222202291. The reversal of 10122222202221 is 12220222222101.

It is not a de Polignac number, because 10122222202221 - 2² = 10122222202217 is a prime.

It is a super-2 number, since 2×10122222202221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122222202291) 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, 2399766076 + ... + 2399770293.

It is an arithmetic number, because the mean of its divisors is an integer number (911911910300).

Almost surely, 2^{10122222202221} is an apocalyptic number.

It is an amenable number.

10122222202221 is a deficient number, since it is larger than the sum of its proper divisors (4468368362579).

10122222202221 is a wasteful number, since it uses less digits than its factorization.

10122222202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799536428.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10122222202221 its reverse (12220222222101), we get a palindrome (22342444424322).

The spelling of 10122222202221 in words is "ten trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty-one".