2200642981 has 4 divisors (see below), whose sum is σ = 2212164864. Its totient is φ = 2189121100.

The previous prime is 2200642957. The next prime is 2200642987. The reversal of 2200642981 is 1892460022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1892460022 = 2 ⋅946230011.

It is a cyclic number.

It is not a de Polignac number, because 2200642981 - 2²⁷ = 2066425253 is a prime.

It is a super-2 number, since 2×2200642981² = 9685659059649132722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200642987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5760655 + ... + 5761036.

It is an arithmetic number, because the mean of its divisors is an integer number (553041216).

Almost surely, 2^2200642981 is an apocalyptic number.

It is an amenable number.

2200642981 is a deficient number, since it is larger than the sum of its proper divisors (11521883).

2200642981 is a wasteful number, since it uses less digits than its factorization.

2200642981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11521882.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2200642981 is about 46911.0112979884. The cubic root of 2200642981 is about 1300.7181399019.

The spelling of 2200642981 in words is "two billion, two hundred million, six hundred forty-two thousand, nine hundred eighty-one".