90222711 has 4 divisors (see below), whose sum is σ = 120296952. Its totient is φ = 60148472.

The previous prime is 90222701. The next prime is 90222731. The reversal of 90222711 is 11722209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11722209 = 3 ⋅3907403.

It is a cyclic number.

It is not a de Polignac number, because 90222711 - 2⁶ = 90222647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90222701) 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, 15037116 + ... + 15037121.

It is an arithmetic number, because the mean of its divisors is an integer number (30074238).

Almost surely, 2^90222711 is an apocalyptic number.

90222711 is a deficient number, since it is larger than the sum of its proper divisors (30074241).

90222711 is a wasteful number, since it uses less digits than its factorization.

90222711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30074240.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 90222711 is about 9498.5636282545. The cubic root of 90222711 is about 448.5098213256.

The spelling of 90222711 in words is "ninety million, two hundred twenty-two thousand, seven hundred eleven".