2142222248 has 8 divisors (see below), whose sum is σ = 4016666730. Its totient is φ = 1071111120.

The previous prime is 2142222191. The next prime is 2142222253. The reversal of 2142222248 is 8422222412.

It can be written as a sum of positive squares in only one way, i.e., 1902529924 + 239692324 = 43618^2 + 15482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2142222248.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133888883 + ... + 133888898.

Almost surely, 2^2142222248 is an apocalyptic number.

It is an amenable number.

2142222248 is a deficient number, since it is larger than the sum of its proper divisors (1874444482).

2142222248 is a wasteful number, since it uses less digits than its factorization.

2142222248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267777787 (or 267777783 counting only the distinct ones).

The product of its digits is 8192, while the sum is 29.

The square root of 2142222248 is about 46284.1468323658. The cubic root of 2142222248 is about 1289.1046504274.

The spelling of 2142222248 in words is "two billion, one hundred forty-two million, two hundred twenty-two thousand, two hundred forty-eight".