922221994 has 8 divisors (see below), whose sum is σ = 1402282980. Its totient is φ = 454794336.

The previous prime is 922221991. The next prime is 922221997. The reversal of 922221994 is 499122229.

It is an interprime number because it is at equal distance from previous prime (922221991) and next prime (922221997).

It can be written as a sum of positive squares in 2 ways, for example, as 905107225 + 17114769 = 30085^2 + 4137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (922221991) 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, 3158149 + ... + 3158440.

Almost surely, 2^922221994 is an apocalyptic number.

922221994 is a deficient number, since it is larger than the sum of its proper divisors (480060986).

922221994 is a wasteful number, since it uses less digits than its factorization.

922221994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316664.

The product of its digits is 46656, while the sum is 40.

The square root of 922221994 is about 30368.1081728843. The cubic root of 922221994 is about 973.3711990596.

The spelling of 922221994 in words is "nine hundred twenty-two million, two hundred twenty-one thousand, nine hundred ninety-four".