1220022112231 has 8 divisors (see below), whose sum is σ = 1314118081584. Its totient is φ = 1125961587840.

The previous prime is 1220022112189. The next prime is 1220022112247. The reversal of 1220022112231 is 1322112200221.

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 1220022112231 - 2³⁷ = 1082583158759 is a prime.

It is a super-2 number, since 2×1220022112231² (a number of 25 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 = 1220022112199 and 1220022112208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220022116231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8789725 + ... + 8927446.

It is an arithmetic number, because the mean of its divisors is an integer number (164264760198).

Almost surely, 2^{1220022112231} is an apocalyptic number.

1220022112231 is a deficient number, since it is larger than the sum of its proper divisors (94095969353).

1220022112231 is a wasteful number, since it uses less digits than its factorization.

1220022112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17722481.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1220022112231 its reverse (1322112200221), we get a palindrome (2542134312452).

The spelling of 1220022112231 in words is "one trillion, two hundred twenty billion, twenty-two million, one hundred twelve thousand, two hundred thirty-one".