8921221298 has 16 divisors (see below), whose sum is σ = 14636491776. Its totient is φ = 4044509040.

The previous prime is 8921221279. The next prime is 8921221307.

8921221298 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520961 + ... + 537812.

It is an arithmetic number, because the mean of its divisors is an integer number (914780736).

Almost surely, 2^8921221298 is an apocalyptic number.

8921221298 is a deficient number, since it is larger than the sum of its proper divisors (5715270478).

8921221298 is a wasteful number, since it uses less digits than its factorization.

8921221298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059169.

The product of its digits is 82944, while the sum is 44.

The square root of 8921221298 is about 94452.2170094488. The cubic root of 8921221298 is about 2073.9969060187.

The spelling of 8921221298 in words is "eight billion, nine hundred twenty-one million, two hundred twenty-one thousand, two hundred ninety-eight".