22202989 has 4 divisors (see below), whose sum is σ = 22418656. Its totient is φ = 21987324.

The previous prime is 22202987. The next prime is 22203011. The reversal of 22202989 is 98920222.

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: 98920222 = 2 ⋅49460111.

It is a cyclic number.

It is not a de Polignac number, because 22202989 - 2¹ = 22202987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107679 + ... + 107884.

It is an arithmetic number, because the mean of its divisors is an integer number (5604664).

Almost surely, 2^22202989 is an apocalyptic number.

It is an amenable number.

22202989 is a deficient number, since it is larger than the sum of its proper divisors (215667).

22202989 is a wasteful number, since it uses less digits than its factorization.

22202989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215666.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 22202989 is about 4712.0047750400. The cubic root of 22202989 is about 281.0630887166.

The spelling of 22202989 in words is "twenty-two million, two hundred two thousand, nine hundred eighty-nine".