11879632221 has 16 divisors (see below), whose sum is σ = 16014267648. Its totient is φ = 7832552000.

The previous prime is 11879632201. The next prime is 11879632223. The reversal of 11879632221 is 12223697811.

It is a cyclic number.

It is not a de Polignac number, because 11879632221 - 2¹⁵ = 11879599453 is a prime.

It is a super-2 number, since 2×11879632221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11879632223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254515 + ... + 297551.

It is an arithmetic number, because the mean of its divisors is an integer number (1000891728).

Almost surely, 2^11879632221 is an apocalyptic number.

It is an amenable number.

11879632221 is a deficient number, since it is larger than the sum of its proper divisors (4134635427).

11879632221 is a wasteful number, since it uses less digits than its factorization.

11879632221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44052.

The product of its digits is 72576, while the sum is 42.

The spelling of 11879632221 in words is "eleven billion, eight hundred seventy-nine million, six hundred thirty-two thousand, two hundred twenty-one".