2122445431 has 4 divisors (see below), whose sum is σ = 2122635312. Its totient is φ = 2122255552.

The previous prime is 2122445357. The next prime is 2122445443. The reversal of 2122445431 is 1345442212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122445431 - 2¹¹ = 2122443383 is a prime.

It is a super-2 number, since 2×2122445431² = 9009549215145551522, which 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 2122445431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122445491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77050 + ... + 100903.

It is an arithmetic number, because the mean of its divisors is an integer number (530658828).

Almost surely, 2^2122445431 is an apocalyptic number.

2122445431 is a deficient number, since it is larger than the sum of its proper divisors (189881).

2122445431 is a wasteful number, since it uses less digits than its factorization.

2122445431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189880.

The product of its digits is 7680, while the sum is 28.

The square root of 2122445431 is about 46070.0057629690. The cubic root of 2122445431 is about 1285.1254110064.

Adding to 2122445431 its reverse (1345442212), we get a palindrome (3467887643).

The spelling of 2122445431 in words is "two billion, one hundred twenty-two million, four hundred forty-five thousand, four hundred thirty-one".