97222222 has 4 divisors (see below), whose sum is σ = 145833336. Its totient is φ = 48611110.

The previous prime is 97222189. The next prime is 97222241. The reversal of 97222222 is 22222279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22222279 = 163 ⋅136333.

97222222 is a modest number, since divided by 22222 gives 972 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24305554 + ... + 24305557.

It is an arithmetic number, because the mean of its divisors is an integer number (36458334).

Almost surely, 2^97222222 is an apocalyptic number.

97222222 is a deficient number, since it is larger than the sum of its proper divisors (48611114).

97222222 is a wasteful number, since it uses less digits than its factorization.

97222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48611113.

The product of its digits is 4032, while the sum is 28.

The square root of 97222222 is about 9860.1329605640. The cubic root of 97222222 is about 459.8206957132.

The spelling of 97222222 in words is "ninety-seven million, two hundred twenty-two thousand, two hundred twenty-two".