22572120237 has 4 divisors (see below), whose sum is σ = 30096160320. Its totient is φ = 15048080156.

The previous prime is 22572120227. The next prime is 22572120253. The reversal of 22572120237 is 73202127522.

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 a cyclic number.

It is not a de Polignac number, because 22572120237 - 2¹⁸ = 22571858093 is a prime.

It is a super-2 number, since 2×22572120237² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22572120198 and 22572120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3762020037 + ... + 3762020042.

It is an arithmetic number, because the mean of its divisors is an integer number (7524040080).

Almost surely, 2^22572120237 is an apocalyptic number.

It is an amenable number.

22572120237 is a deficient number, since it is larger than the sum of its proper divisors (7524040083).

22572120237 is an equidigital number, since it uses as much as digits as its factorization.

22572120237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524040082.

The product of its (nonzero) digits is 23520, while the sum is 33.

Adding to 22572120237 its reverse (73202127522), we get a palindrome (95774247759).

The spelling of 22572120237 in words is "twenty-two billion, five hundred seventy-two million, one hundred twenty thousand, two hundred thirty-seven".