22142221204031 has 4 divisors (see below), whose sum is σ = 22472702117592. Its totient is φ = 21811740290472.

The previous prime is 22142221204013. The next prime is 22142221204073. The reversal of 22142221204031 is 13040212224122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22142221204031 - 2²² = 22142217009727 is a prime.

It is a super-2 number, since 2×22142221204031² (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 (22142221204231) 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, 165240456680 + ... + 165240456813.

It is an arithmetic number, because the mean of its divisors is an integer number (5618175529398).

Almost surely, 2^{22142221204031} is an apocalyptic number.

22142221204031 is a deficient number, since it is larger than the sum of its proper divisors (330480913561).

22142221204031 is an equidigital number, since it uses as much as digits as its factorization.

22142221204031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330480913560.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 22142221204031 its reverse (13040212224122), we get a palindrome (35182433428153).

The spelling of 22142221204031 in words is "twenty-two trillion, one hundred forty-two billion, two hundred twenty-one million, two hundred four thousand, thirty-one".