11202122231 has 4 divisors (see below), whose sum is σ = 11234405352. Its totient is φ = 11169839112.

The previous prime is 11202122227. The next prime is 11202122237. The reversal of 11202122231 is 13222120211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11202122231 - 2² = 11202122227 is a prime.

It is a super-2 number, since 2×11202122231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202122237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16141040 + ... + 16141733.

It is an arithmetic number, because the mean of its divisors is an integer number (2808601338).

Almost surely, 2^11202122231 is an apocalyptic number.

11202122231 is a deficient number, since it is larger than the sum of its proper divisors (32283121).

11202122231 is an equidigital number, since it uses as much as digits as its factorization.

11202122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32283120.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11202122231 its reverse (13222120211), we get a palindrome (24424242442).

The spelling of 11202122231 in words is "eleven billion, two hundred two million, one hundred twenty-two thousand, two hundred thirty-one".