100022221011931 has 2 divisors, whose sum is σ = 100022221011932. Its totient is φ = 100022221011930.

The previous prime is 100022221011929. The next prime is 100022221012003. The reversal of 100022221011931 is 139110122220001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100022221011931 - 2¹ = 100022221011929 is a prime.

It is a super-2 number, since 2×100022221011931² (a number of 29 digits) contains 22 as substring.

Together with 100022221011929, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 100022221011896 and 100022221011905.

It is not a weakly prime, because it can be changed into another prime (100022222011931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50011110505965 + 50011110505966.

It is an arithmetic number, because the mean of its divisors is an integer number (50011110505966).

Almost surely, 2^{100022221011931} is an apocalyptic number.

100022221011931 is a deficient number, since it is larger than the sum of its proper divisors (1).

100022221011931 is an equidigital number, since it uses as much as digits as its factorization.

100022221011931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 100022221011931 its reverse (139110122220001), we get a palindrome (239132343231932).

The spelling of 100022221011931 in words is "one hundred trillion, twenty-two billion, two hundred twenty-one million, eleven thousand, nine hundred thirty-one".