22211323212031 has 2 divisors, whose sum is σ = 22211323212032. Its totient is φ = 22211323212030.

The previous prime is 22211323212019. The next prime is 22211323212103. The reversal of 22211323212031 is 13021232311222.

Together with next prime (22211323212103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22211323212031 - 2²⁹ = 22210786341119 is a prime.

It is a super-2 number, since 2×22211323212031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22211323211987 and 22211323212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211323212431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105661606015 + 11105661606016.

It is an arithmetic number, because the mean of its divisors is an integer number (11105661606016).

Almost surely, 2^{22211323212031} is an apocalyptic number.

22211323212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211323212031 is an equidigital number, since it uses as much as digits as its factorization.

22211323212031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 22211323212031 its reverse (13021232311222), we get a palindrome (35232555523253).

The spelling of 22211323212031 in words is "twenty-two trillion, two hundred eleven billion, three hundred twenty-three million, two hundred twelve thousand, thirty-one".