2222012981 has 2 divisors, whose sum is σ = 2222012982. Its totient is φ = 2222012980.

The previous prime is 2222012977. The next prime is 2222013019. The reversal of 2222012981 is 1892102222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1479940900 + 742072081 = 38470^2 + 27241^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222012981 - 2² = 2222012977 is a prime.

It is a super-2 number, since 2×2222012981² = 9874683375465012722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222012941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111006490 + 1111006491.

It is an arithmetic number, because the mean of its divisors is an integer number (1111006491).

Almost surely, 2^2222012981 is an apocalyptic number.

It is an amenable number.

2222012981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222012981 is an equidigital number, since it uses as much as digits as its factorization.

2222012981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 2222012981 is about 47138.2326885512. The cubic root of 2222012981 is about 1304.9149215195.

The spelling of 2222012981 in words is "two billion, two hundred twenty-two million, twelve thousand, nine hundred eighty-one".