22135344451 has 48 divisors (see below), whose sum is σ = 26072766720. Its totient is φ = 18723355200.

The previous prime is 22135344421. The next prime is 22135344467. The reversal of 22135344451 is 15444353122.

It is not a de Polignac number, because 22135344451 - 2¹⁵ = 22135311683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22135344421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59343901 + ... + 59344273.

It is an arithmetic number, because the mean of its divisors is an integer number (543182640).

Almost surely, 2^22135344451 is an apocalyptic number.

22135344451 is a deficient number, since it is larger than the sum of its proper divisors (3937422269).

22135344451 is a wasteful number, since it uses less digits than its factorization.

22135344451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 797 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 22135344451 its reverse (15444353122), we get a palindrome (37579697573).

The spelling of 22135344451 in words is "twenty-two billion, one hundred thirty-five million, three hundred forty-four thousand, four hundred fifty-one".