21222032311031 has 8 divisors (see below), whose sum is σ = 21253074126240. Its totient is φ = 21191013116928.

The previous prime is 21222032311021. The next prime is 21222032311079. The reversal of 21222032311031 is 13011323022212.

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 21222032311031 - 2¹⁸ = 21222032048887 is a prime.

It is a super-2 number, since 2×21222032311031² (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 = 21222032310988 and 21222032311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222032311001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3777146 + ... + 7530663.

It is an arithmetic number, because the mean of its divisors is an integer number (2656634265780).

Almost surely, 2^{21222032311031} is an apocalyptic number.

21222032311031 is a deficient number, since it is larger than the sum of its proper divisors (31041815209).

21222032311031 is a wasteful number, since it uses less digits than its factorization.

21222032311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310553.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21222032311031 its reverse (13011323022212), we get a palindrome (34233355333243).

The spelling of 21222032311031 in words is "twenty-one trillion, two hundred twenty-two billion, thirty-two million, three hundred eleven thousand, thirty-one".