2147222399 has 16 divisors (see below), whose sum is σ = 2495784960. Its totient is φ = 1809265920.

The previous prime is 2147222351. The next prime is 2147222423. The reversal of 2147222399 is 9932227412.

It is a de Polignac number, because none of the positive numbers 2^k-2147222399 is a prime.

It is a super-2 number, since 2×2147222399² = 9221128061534630402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147222599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169322 + ... + 181560.

It is an arithmetic number, because the mean of its divisors is an integer number (155986560).

Almost surely, 2^2147222399 is an apocalyptic number.

2147222399 is a deficient number, since it is larger than the sum of its proper divisors (348562561).

2147222399 is a wasteful number, since it uses less digits than its factorization.

2147222399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670.

The product of its digits is 108864, while the sum is 41.

The square root of 2147222399 is about 46338.1311556692. The cubic root of 2147222399 is about 1290.1068354921.

The spelling of 2147222399 in words is "two billion, one hundred forty-seven million, two hundred twenty-two thousand, three hundred ninety-nine".