2173221098 has 4 divisors (see below), whose sum is σ = 3259831650. Its totient is φ = 1086610548.

The previous prime is 2173221073. The next prime is 2173221101. The reversal of 2173221098 is 8901223712.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2156023489 + 17197609 = 46433^2 + 4147^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543305273 + ... + 543305276.

Almost surely, 2^2173221098 is an apocalyptic number.

2173221098 is a deficient number, since it is larger than the sum of its proper divisors (1086610552).

2173221098 is a wasteful number, since it uses less digits than its factorization.

2173221098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086610551.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2173221098 is about 46617.8195328782. The cubic root of 2173221098 is about 1295.2928578435.

The spelling of 2173221098 in words is "two billion, one hundred seventy-three million, two hundred twenty-one thousand, ninety-eight".