1322100221031 has 10 divisors (see below), whose sum is σ = 1974989219192. Its totient is φ = 881400147300.

The previous prime is 1322100221027. The next prime is 1322100221051. The reversal of 1322100221031 is 1301220012231.

1322100221031 is a `hidden beast` number, since 1 + 322 + 100 + 2 + 210 + 31 = 666.

It is not a de Polignac number, because 1322100221031 - 2² = 1322100221027 is a prime.

It is a super-2 number, since 2×1322100221031² (a number of 25 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 = 1322100220995 and 1322100221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322100221051) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8161112395 + ... + 8161112556.

Almost surely, 2^{1322100221031} is an apocalyptic number.

1322100221031 is a deficient number, since it is larger than the sum of its proper divisors (652888998161).

1322100221031 is an equidigital number, since it uses as much as digits as its factorization.

1322100221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16322224963 (or 16322224954 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1322100221031 its reverse (1301220012231), we get a palindrome (2623320233262).

The spelling of 1322100221031 in words is "one trillion, three hundred twenty-two billion, one hundred million, two hundred twenty-one thousand, thirty-one".