222021010006981 has 2 divisors, whose sum is σ = 222021010006982. Its totient is φ = 222021010006980.

The previous prime is 222021010006969. The next prime is 222021010006987. The reversal of 222021010006981 is 189600010120222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143999280000900 + 78021730006081 = 11999970^2 + 8832991^2 .

It is a cyclic number.

It is not a de Polignac number, because 222021010006981 - 2¹⁵ = 222021009974213 is a prime.

It is a super-2 number, since 2×222021010006981² (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 (222021010006987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010505003490 + 111010505003491.

It is an arithmetic number, because the mean of its divisors is an integer number (111010505003491).

Almost surely, 2^{222021010006981} is an apocalyptic number.

It is an amenable number.

222021010006981 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021010006981 is an equidigital number, since it uses as much as digits as its factorization.

222021010006981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 222021010006981 in words is "two hundred twenty-two trillion, twenty-one billion, ten million, six thousand, nine hundred eighty-one".