2215622198 has 4 divisors (see below), whose sum is σ = 3323433300. Its totient is φ = 1107811098.

The previous prime is 2215622183. The next prime is 2215622207. The reversal of 2215622198 is 8912265122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8912265122 = 2 ⋅4456132561.

It is a Curzon number.

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, 553905548 + ... + 553905551.

It is an arithmetic number, because the mean of its divisors is an integer number (830858325).

Almost surely, 2^2215622198 is an apocalyptic number.

2215622198 is a deficient number, since it is larger than the sum of its proper divisors (1107811102).

2215622198 is a wasteful number, since it uses less digits than its factorization.

2215622198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107811101.

The product of its digits is 34560, while the sum is 38.

The square root of 2215622198 is about 47070.3961954858. The cubic root of 2215622198 is about 1303.6626882155.

The spelling of 2215622198 in words is "two billion, two hundred fifteen million, six hundred twenty-two thousand, one hundred ninety-eight".