22202222211021 has 4 divisors (see below), whose sum is σ = 29602962948032. Its totient is φ = 14801481474012.

The previous prime is 22202222210969. The next prime is 22202222211031. The reversal of 22202222211021 is 12011222220222.

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 not a de Polignac number, because 22202222211021 - 2²¹ = 22202220113869 is a prime.

It is a super-2 number, since 2×22202222211021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202222211031) 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, 3700370368501 + ... + 3700370368506.

It is an arithmetic number, because the mean of its divisors is an integer number (7400740737008).

Almost surely, 2^{22202222211021} is an apocalyptic number.

It is an amenable number.

22202222211021 is a deficient number, since it is larger than the sum of its proper divisors (7400740737011).

22202222211021 is an equidigital number, since it uses as much as digits as its factorization.

22202222211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400740737010.

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

Adding to 22202222211021 its reverse (12011222220222), we get a palindrome (34213444431243).

The spelling of 22202222211021 in words is "twenty-two trillion, two hundred two billion, two hundred twenty-two million, two hundred eleven thousand, twenty-one".