22135405252 has 48 divisors (see below), whose sum is σ = 41551413120. Its totient is φ = 10291007232.

The previous prime is 22135405249. The next prime is 22135405277. The reversal of 22135405252 is 25250453122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4964208 + ... + 4968664.

It is an arithmetic number, because the mean of its divisors is an integer number (865654440).

Almost surely, 2^22135405252 is an apocalyptic number.

It is an amenable number.

22135405252 is a deficient number, since it is larger than the sum of its proper divisors (19416007868).

22135405252 is a wasteful number, since it uses less digits than its factorization.

22135405252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980 (or 5978 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 22135405252 its reverse (25250453122), we get a palindrome (47385858374).

The spelling of 22135405252 in words is "twenty-two billion, one hundred thirty-five million, four hundred five thousand, two hundred fifty-two".