122222091 has 8 divisors (see below), whose sum is σ = 163192320. Its totient is φ = 81366632.

The previous prime is 122222071. The next prime is 122222131. The reversal of 122222091 is 190222221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122222091 - 2⁵ = 122222059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122222071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26175 + ... + 30488.

It is an arithmetic number, because the mean of its divisors is an integer number (20399040).

Almost surely, 2^122222091 is an apocalyptic number.

122222091 is a deficient number, since it is larger than the sum of its proper divisors (40970229).

122222091 is an equidigital number, since it uses as much as digits as its factorization.

122222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57385.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 122222091 is about 11055.4100331014. The cubic root of 122222091 is about 496.2683400472.

The spelling of 122222091 in words is "one hundred twenty-two million, two hundred twenty-two thousand, ninety-one".