2220404240431 has 32 divisors (see below), whose sum is σ = 2627234362368. Its totient is φ = 1857639329280.

The previous prime is 2220404240309. The next prime is 2220404240437. The reversal of 2220404240431 is 1340424040222.

It is a cyclic number.

It is not a de Polignac number, because 2220404240431 - 2¹⁵ = 2220404207663 is a prime.

It is a super-2 number, since 2×2220404240431² (a number of 25 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 2220404240431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220404240437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 970731 + ... + 2320156.

It is an arithmetic number, because the mean of its divisors is an integer number (82101073824).

Almost surely, 2^{2220404240431} is an apocalyptic number.

2220404240431 is a deficient number, since it is larger than the sum of its proper divisors (406830121937).

2220404240431 is a wasteful number, since it uses less digits than its factorization.

2220404240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291031.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2220404240431 its reverse (1340424040222), we get a palindrome (3560828280653).

The spelling of 2220404240431 in words is "two trillion, two hundred twenty billion, four hundred four million, two hundred forty thousand, four hundred thirty-one".