2200981 has 2 divisors, whose sum is σ = 2200982. Its totient is φ = 2200980.

The previous prime is 2200967. The next prime is 2200987. The reversal of 2200981 is 1890022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 54756 = 1465^2 + 234^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200981 - 2⁵ = 2200949 is a prime.

It is a super-2 number, since 2×2200981² = 9688634724722, which contains 22 as substring.

2200981 is a lucky number.

It is equal to p₁₆₂₇₃₃ and since 2200981 and 162733 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100490 + 1100491.

It is an arithmetic number, because the mean of its divisors is an integer number (1100491).

2^2200981 is an apocalyptic number.

It is an amenable number.

2200981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200981 is an equidigital number, since it uses as much as digits as its factorization.

2200981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2200981 is about 1483.5703555949. The cubic root of 2200981 is about 130.0784733308.

The spelling of 2200981 in words is "two million, two hundred thousand, nine hundred eighty-one".