22220402340431 has 2 divisors, whose sum is σ = 22220402340432. Its totient is φ = 22220402340430.

The previous prime is 22220402340427. The next prime is 22220402340473. The reversal of 22220402340431 is 13404320402222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220402340431 - 2² = 22220402340427 is a prime.

It is a super-2 number, since 2×22220402340431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22220402340394 and 22220402340403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220402343431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110201170215 + 11110201170216.

It is an arithmetic number, because the mean of its divisors is an integer number (11110201170216).

Almost surely, 2^{22220402340431} is an apocalyptic number.

22220402340431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220402340431 is an equidigital number, since it uses as much as digits as its factorization.

22220402340431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 22220402340431 its reverse (13404320402222), we get a palindrome (35624722742653).

The spelling of 22220402340431 in words is "twenty-two trillion, two hundred twenty billion, four hundred two million, three hundred forty thousand, four hundred thirty-one".