22111031033231 has 4 divisors (see below), whose sum is σ = 25269749752272. Its totient is φ = 18952312314192.

The previous prime is 22111031033171. The next prime is 22111031033233. The reversal of 22111031033231 is 13233013011122.

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 22111031033231 - 2¹⁴ = 22111031016847 is a prime.

It is a super-2 number, since 2×22111031033231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22111031033197 and 22111031033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111031033233) 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, 1579359359510 + ... + 1579359359523.

It is an arithmetic number, because the mean of its divisors is an integer number (6317437438068).

Almost surely, 2^{22111031033231} is an apocalyptic number.

22111031033231 is a deficient number, since it is larger than the sum of its proper divisors (3158718719041).

22111031033231 is an equidigital number, since it uses as much as digits as its factorization.

22111031033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158718719040.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 22111031033231 its reverse (13233013011122), we get a palindrome (35344044044353).

The spelling of 22111031033231 in words is "twenty-two trillion, one hundred eleven billion, thirty-one million, thirty-three thousand, two hundred thirty-one".