2215552612 has 48 divisors (see below), whose sum is σ = 4784532480. Its totient is φ = 874173312.

The previous prime is 2215552567. The next prime is 2215552667. The reversal of 2215552612 is 2162555122.

It is a happy number.

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, 133773 + ... + 149419.

It is an arithmetic number, because the mean of its divisors is an integer number (99677760).

Almost surely, 2^2215552612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215552612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392266240).

2215552612 is an abundant number, since it is smaller than the sum of its proper divisors (2568979868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215552612 is a wasteful number, since it uses less digits than its factorization.

2215552612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16060 (or 16058 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 2215552612 is about 47069.6570202078. The cubic root of 2215552612 is about 1303.6490400370.

The spelling of 2215552612 in words is "two billion, two hundred fifteen million, five hundred fifty-two thousand, six hundred twelve".