22120201231 has 2 divisors, whose sum is σ = 22120201232. Its totient is φ = 22120201230.

The previous prime is 22120201183. The next prime is 22120201283. The reversal of 22120201231 is 13210202122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22120201231 - 2¹⁵ = 22120168463 is a prime.

It is a super-2 number, since 2×22120201231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22120201291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060100615 + 11060100616.

It is an arithmetic number, because the mean of its divisors is an integer number (11060100616).

Almost surely, 2^22120201231 is an apocalyptic number.

22120201231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120201231 is an equidigital number, since it uses as much as digits as its factorization.

22120201231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22120201231 its reverse (13210202122), we get a palindrome (35330403353).

The spelling of 22120201231 in words is "twenty-two billion, one hundred twenty million, two hundred one thousand, two hundred thirty-one".