12022010981 has 2 divisors, whose sum is σ = 12022010982. Its totient is φ = 12022010980.

The previous prime is 12022010977. The next prime is 12022011019. The reversal of 12022010981 is 18901022021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6036513025 + 5985497956 = 77695^2 + 77366^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022010981 - 2² = 12022010977 is a prime.

It is a super-2 number, since 2×12022010981² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12022010981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022010681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011005490 + 6011005491.

It is an arithmetic number, because the mean of its divisors is an integer number (6011005491).

Almost surely, 2^12022010981 is an apocalyptic number.

It is an amenable number.

12022010981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022010981 is an equidigital number, since it uses as much as digits as its factorization.

12022010981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 12022010981 in words is "twelve billion, twenty-two million, ten thousand, nine hundred eighty-one".