98922221 has 4 divisors (see below), whose sum is σ = 100788732. Its totient is φ = 97055712.

The previous prime is 98922203. The next prime is 98922223. The reversal of 98922221 is 12222989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81198121 + 17724100 = 9011^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 98922221 - 2⁶ = 98922157 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 (98922223) 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, 933176 + ... + 933281.

It is an arithmetic number, because the mean of its divisors is an integer number (25197183).

Almost surely, 2^98922221 is an apocalyptic number.

It is an amenable number.

98922221 is a deficient number, since it is larger than the sum of its proper divisors (1866511).

98922221 is a wasteful number, since it uses less digits than its factorization.

98922221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866510.

The product of its digits is 10368, while the sum is 35.

The square root of 98922221 is about 9945.9650612698. The cubic root of 98922221 is about 462.4853207905.

The spelling of 98922221 in words is "ninety-eight million, nine hundred twenty-two thousand, two hundred twenty-one".