22552001231 has 8 divisors (see below), whose sum is σ = 22964580240. Its totient is φ = 22140433728.

The previous prime is 22552001209. The next prime is 22552001249. The reversal of 22552001231 is 13210025522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22552001231 - 2⁶ = 22552001167 is a prime.

It is a super-2 number, since 2×22552001231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22552001197 and 22552001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22552001201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207806 + ... + 297131.

It is an arithmetic number, because the mean of its divisors is an integer number (2870572530).

Almost surely, 2^22552001231 is an apocalyptic number.

22552001231 is a deficient number, since it is larger than the sum of its proper divisors (412579009).

22552001231 is an equidigital number, since it uses as much as digits as its factorization.

22552001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505753.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 22552001231 its reverse (13210025522), we get a palindrome (35762026753).

The spelling of 22552001231 in words is "twenty-two billion, five hundred fifty-two million, one thousand, two hundred thirty-one".