11399681022 has 32 divisors (see below), whose sum is σ = 23132751648. Its totient is φ = 3744423936.

The previous prime is 11399681011. The next prime is 11399681071. The reversal of 11399681022 is 22018699311.

It is a congruent 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, 493728 + ... + 516300.

It is an arithmetic number, because the mean of its divisors is an integer number (722898489).

Almost surely, 2^11399681022 is an apocalyptic number.

11399681022 is an abundant number, since it is smaller than the sum of its proper divisors (11733070626).

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

11399681022 is a wasteful number, since it uses less digits than its factorization.

11399681022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 11399681022 in words is "eleven billion, three hundred ninety-nine million, six hundred eighty-one thousand, twenty-two".