222022112219981 has 2 divisors, whose sum is σ = 222022112219982. Its totient is φ = 222022112219980.

The previous prime is 222022112219923. The next prime is 222022112220071. The reversal of 222022112219981 is 189912211220222.

222022112219981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186665709704356 + 35356402515625 = 13662566^2 + 5946125^2 .

It is a cyclic number.

It is not a de Polignac number, because 222022112219981 - 2¹⁰ = 222022112218957 is a prime.

It is a super-2 number, since 2×222022112219981² (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 (222022112213981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111011056109990 + 111011056109991.

It is an arithmetic number, because the mean of its divisors is an integer number (111011056109991).

Almost surely, 2^{222022112219981} is an apocalyptic number.

It is an amenable number.

222022112219981 is a deficient number, since it is larger than the sum of its proper divisors (1).

222022112219981 is an equidigital number, since it uses as much as digits as its factorization.

222022112219981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 222022112219981 in words is "two hundred twenty-two trillion, twenty-two billion, one hundred twelve million, two hundred nineteen thousand, nine hundred eighty-one".