221132012311 has 8 divisors (see below), whose sum is σ = 252738362240. Its totient is φ = 189529678008.

The previous prime is 221132012279. The next prime is 221132012317. The reversal of 221132012311 is 113210231122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221132012311 - 2⁵ = 221132012279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221132012317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884961 + ... + 1106986.

It is an arithmetic number, because the mean of its divisors is an integer number (31592295280).

Almost surely, 2^221132012311 is an apocalyptic number.

221132012311 is a deficient number, since it is larger than the sum of its proper divisors (31606349929).

221132012311 is a wasteful number, since it uses less digits than its factorization.

221132012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007813.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 221132012311 its reverse (113210231122), we get a palindrome (334342243433).

The spelling of 221132012311 in words is "two hundred twenty-one billion, one hundred thirty-two million, twelve thousand, three hundred eleven".