1222010081 has 2 divisors, whose sum is σ = 1222010082. Its totient is φ = 1222010080.

The previous prime is 1222010057. The next prime is 1222010093. The reversal of 1222010081 is 1800102221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177587856 + 44422225 = 34316^2 + 6665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222010081 - 2¹⁴ = 1221993697 is a prime.

It is a super-2 number, since 2×1222010081² = 2986617276131253122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611005040 + 611005041.

It is an arithmetic number, because the mean of its divisors is an integer number (611005041).

Almost surely, 2^1222010081 is an apocalyptic number.

It is an amenable number.

1222010081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222010081 is an equidigital number, since it uses as much as digits as its factorization.

1222010081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1222010081 is about 34957.2607765540. The cubic root of 1222010081 is about 1069.1162473054.

The spelling of 1222010081 in words is "one billion, two hundred twenty-two million, ten thousand, eighty-one".