22151215124 has 12 divisors (see below), whose sum is σ = 38978796948. Its totient is φ = 11014416000.

The previous prime is 22151215109. The next prime is 22151215127. The reversal of 22151215124 is 42151215122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8241371524 + 13909843600 = 90782^2 + 117940^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22151215093 and 22151215102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151215127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15297077 + ... + 15298524.

It is an arithmetic number, because the mean of its divisors is an integer number (3248233079).

Almost surely, 2^22151215124 is an apocalyptic number.

It is an amenable number.

22151215124 is a deficient number, since it is larger than the sum of its proper divisors (16827581824).

22151215124 is a wasteful number, since it uses less digits than its factorization.

22151215124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30595786 (or 30595784 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The spelling of 22151215124 in words is "twenty-two billion, one hundred fifty-one million, two hundred fifteen thousand, one hundred twenty-four".