223442212322981 has 2 divisors, whose sum is σ = 223442212322982. Its totient is φ = 223442212322980.

The previous prime is 223442212322951. The next prime is 223442212323013. The reversal of 223442212322981 is 189223212244322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114470013272356 + 108972199050625 = 10699066^2 + 10438975^2 .

It is a cyclic number.

It is not a de Polignac number, because 223442212322981 - 2³⁴ = 223425032453797 is a prime.

It is a super-2 number, since 2×223442212322981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223442212322951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111721106161490 + 111721106161491.

It is an arithmetic number, because the mean of its divisors is an integer number (111721106161491).

Almost surely, 2^{223442212322981} is an apocalyptic number.

It is an amenable number.

223442212322981 is a deficient number, since it is larger than the sum of its proper divisors (1).

223442212322981 is an equidigital number, since it uses as much as digits as its factorization.

223442212322981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 47.

The spelling of 223442212322981 in words is "two hundred twenty-three trillion, four hundred forty-two billion, two hundred twelve million, three hundred twenty-two thousand, nine hundred eighty-one".