2142222249 has 8 divisors (see below), whose sum is σ = 2868149152. Its totient is φ = 1422221760.

The previous prime is 2142222191. The next prime is 2142222253. The reversal of 2142222249 is 9422222412.

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

It is not a de Polignac number, because 2142222249 - 2⁸ = 2142221993 is a prime.

It is a super-2 number, since 2×2142222249² = 9178232328221236002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142222349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1480759 + ... + 1482204.

It is an arithmetic number, because the mean of its divisors is an integer number (358518644).

Almost surely, 2^2142222249 is an apocalyptic number.

It is an amenable number.

2142222249 is a deficient number, since it is larger than the sum of its proper divisors (725926903).

2142222249 is a wasteful number, since it uses less digits than its factorization.

2142222249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963207.

The product of its digits is 9216, while the sum is 30.

The square root of 2142222249 is about 46284.1468431687. The cubic root of 2142222249 is about 1289.1046506280.

The spelling of 2142222249 in words is "two billion, one hundred forty-two million, two hundred twenty-two thousand, two hundred forty-nine".