221022021010031 has 2 divisors, whose sum is σ = 221022021010032. Its totient is φ = 221022021010030.

The previous prime is 221022021010013. The next prime is 221022021010067. The reversal of 221022021010031 is 130010120220122.

Together with previous prime (221022021010013) 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 a de Polignac number, because none of the positive numbers 2^k-221022021010031 is a prime.

It is a super-2 number, since 2×221022021010031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221022021009991 and 221022021010009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221022021010001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511010505015 + 110511010505016.

It is an arithmetic number, because the mean of its divisors is an integer number (110511010505016).

Almost surely, 2^{221022021010031} is an apocalyptic number.

221022021010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022021010031 is an equidigital number, since it uses as much as digits as its factorization.

221022021010031 is an odious number, because the sum of its binary digits is odd.

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

Adding to 221022021010031 its reverse (130010120220122), we get a palindrome (351032141230153).

The spelling of 221022021010031 in words is "two hundred twenty-one trillion, twenty-two billion, twenty-one million, ten thousand, thirty-one".