11220022431431 has 6 divisors (see below), whose sum is σ = 12332751928896. Its totient is φ = 10200020392100.

The previous prime is 11220022431427. The next prime is 11220022431433. The reversal of 11220022431431 is 13413422002211.

It is a happy number.

It is not a de Polignac number, because 11220022431431 - 2² = 11220022431427 is a prime.

It is a super-2 number, since 2×11220022431431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220022431431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220022431433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46363728935 + ... + 46363729176.

It is an arithmetic number, because the mean of its divisors is an integer number (2055458654816).

Almost surely, 2^{11220022431431} is an apocalyptic number.

11220022431431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220022431431 is a deficient number, since it is larger than the sum of its proper divisors (1112729497465).

11220022431431 is an equidigital number, since it uses as much as digits as its factorization.

11220022431431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92727458133 (or 92727458122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11220022431431 its reverse (13413422002211), we get a palindrome (24633444433642).

The spelling of 11220022431431 in words is "eleven trillion, two hundred twenty billion, twenty-two million, four hundred thirty-one thousand, four hundred thirty-one".