11222522664 has 128 divisors (see below), whose sum is σ = 31061802240. Its totient is φ = 3360817152.

The previous prime is 11222522659. The next prime is 11222522669. The reversal of 11222522664 is 46622522211.

It is an interprime number because it is at equal distance from previous prime (11222522659) and next prime (11222522669).

It is not an unprimeable number, because it can be changed into a prime (11222522669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6314544 + ... + 6316320.

It is an arithmetic number, because the mean of its divisors is an integer number (242670330).

Almost surely, 2^11222522664 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 11222522664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15530901120).

11222522664 is an abundant number, since it is smaller than the sum of its proper divisors (19839279576).

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

11222522664 is a wasteful number, since it uses less digits than its factorization.

11222522664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2495 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The spelling of 11222522664 in words is "eleven billion, two hundred twenty-two million, five hundred twenty-two thousand, six hundred sixty-four".