22521412154 has 8 divisors (see below), whose sum is σ = 34500886848. Its totient is φ = 11021116540.

The previous prime is 22521412073. The next prime is 22521412157. The reversal of 22521412154 is 45121412522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22521412157) 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, 119794652 + ... + 119794839.

It is an arithmetic number, because the mean of its divisors is an integer number (4312610856).

Almost surely, 2^22521412154 is an apocalyptic number.

22521412154 is a deficient number, since it is larger than the sum of its proper divisors (11979474694).

22521412154 is a wasteful number, since it uses less digits than its factorization.

22521412154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239589540.

The product of its digits is 6400, while the sum is 29.

Adding to 22521412154 its reverse (45121412522), we get a palindrome (67642824676).

The spelling of 22521412154 in words is "twenty-two billion, five hundred twenty-one million, four hundred twelve thousand, one hundred fifty-four".