9722222222222 has 4 divisors (see below), whose sum is σ = 14583333333336. Its totient is φ = 4861111111110.

The previous prime is 9722222222201. The next prime is 9722222222243. The reversal of 9722222222222 is 2222222222279.

9722222222222 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.

It is an interprime number because it is at equal distance from previous prime (9722222222201) and next prime (9722222222243).

9722222222222 is a modest number, since divided by 2222222 gives 972222 as remainder.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430555555554 + ... + 2430555555557.

It is an arithmetic number, because the mean of its divisors is an integer number (3645833333334).

Almost surely, 2^{9722222222222} is an apocalyptic number.

9722222222222 is a deficient number, since it is larger than the sum of its proper divisors (4861111111114).

9722222222222 is a wasteful number, since it uses less digits than its factorization.

9722222222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861111111113.

The product of its digits is 129024, while the sum is 38.

The spelling of 9722222222222 in words is "nine trillion, seven hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".