11645232222 has 128 divisors (see below), whose sum is σ = 26635682304. Its totient is φ = 3369558528.

The previous prime is 11645232163. The next prime is 11645232251. The reversal of 11645232222 is 22223254611.

It is a super-2 number, since 2×11645232222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11645232222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13278048 + ... + 13278924.

It is an arithmetic number, because the mean of its divisors is an integer number (208091268).

Almost surely, 2^11645232222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11645232222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13317841152).

11645232222 is an abundant number, since it is smaller than the sum of its proper divisors (14990450082).

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

11645232222 is a wasteful number, since it uses less digits than its factorization.

11645232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its digits is 11520, while the sum is 30.

Adding to 11645232222 its reverse (22223254611), we get a palindrome (33868486833).

The spelling of 11645232222 in words is "eleven billion, six hundred forty-five million, two hundred thirty-two thousand, two hundred twenty-two".