21111033322231 has 8 divisors (see below), whose sum is σ = 22429148437584. Its totient is φ = 19801394832000.

The previous prime is 21111033322193. The next prime is 21111033322271. The reversal of 21111033322231 is 13222333011112.

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 21111033322231 - 2²⁵ = 21110999767799 is a prime.

It is a super-2 number, since 2×21111033322231² (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 = 21111033322196 and 21111033322205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21111033322271) 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, 2119151145 + ... + 2119161106.

It is an arithmetic number, because the mean of its divisors is an integer number (2803643554698).

Almost surely, 2^{21111033322231} is an apocalyptic number.

21111033322231 is a deficient number, since it is larger than the sum of its proper divisors (1318115115353).

21111033322231 is a wasteful number, since it uses less digits than its factorization.

21111033322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238312561.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21111033322231 its reverse (13222333011112), we get a palindrome (34333366333343).

The spelling of 21111033322231 in words is "twenty-one trillion, one hundred eleven billion, thirty-three million, three hundred twenty-two thousand, two hundred thirty-one".