23215565122 has 8 divisors (see below), whose sum is σ = 35764519356. Its totient is φ = 11294058672.

The previous prime is 23215565119. The next prime is 23215565123. The reversal of 23215565122 is 22156551232.

It can be written as a sum of positive squares in 2 ways, for example, as 23143841161 + 71723961 = 152131^2 + 8469^2 .

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 (23215565123) 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, 156861853 + ... + 156862000.

Almost surely, 2^23215565122 is an apocalyptic number.

23215565122 is a deficient number, since it is larger than the sum of its proper divisors (12548954234).

23215565122 is a wasteful number, since it uses less digits than its factorization.

23215565122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313723892.

The product of its digits is 36000, while the sum is 34.

The spelling of 23215565122 in words is "twenty-three billion, two hundred fifteen million, five hundred sixty-five thousand, one hundred twenty-two".