222100130981 has 2 divisors, whose sum is σ = 222100130982. Its totient is φ = 222100130980.

The previous prime is 222100130899. The next prime is 222100131023. The reversal of 222100130981 is 189031001222.

222100130981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133638500356 + 88461630625 = 365566^2 + 297425^2 .

It is a cyclic number.

It is not a de Polignac number, because 222100130981 - 2²² = 222095936677 is a prime.

It is a super-2 number, since 2×222100130981² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222100130081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050065490 + 111050065491.

It is an arithmetic number, because the mean of its divisors is an integer number (111050065491).

Almost surely, 2^222100130981 is an apocalyptic number.

It is an amenable number.

222100130981 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100130981 is an equidigital number, since it uses as much as digits as its factorization.

222100130981 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 29.

The spelling of 222100130981 in words is "two hundred twenty-two billion, one hundred million, one hundred thirty thousand, nine hundred eighty-one".