222072911 has 4 divisors (see below), whose sum is σ = 224038272. Its totient is φ = 220107552.

The previous prime is 222072901. The next prime is 222072913. The reversal of 222072911 is 119270222.

222072911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119270222 = 2 ⋅59635111.

It is a cyclic number.

It is not a de Polignac number, because 222072911 - 2¹⁸ = 221810767 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 (222072913) 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, 982511 + ... + 982736.

It is an arithmetic number, because the mean of its divisors is an integer number (56009568).

Almost surely, 2^222072911 is an apocalyptic number.

222072911 is a deficient number, since it is larger than the sum of its proper divisors (1965361).

222072911 is a wasteful number, since it uses less digits than its factorization.

222072911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965360.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 222072911 is about 14902.1109578475. The cubic root of 222072911 is about 605.5711756348.

The spelling of 222072911 in words is "two hundred twenty-two million, seventy-two thousand, nine hundred eleven".