17221914980 has 48 divisors (see below), whose sum is σ = 36529656240. Its totient is φ = 6819614208.

The previous prime is 17221914977. The next prime is 17221915021. The reversal of 17221914980 is 8941912271.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2328641536 + 14893273444 = 48256^2 + 122038^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3164822 + ... + 3170258.

It is an arithmetic number, because the mean of its divisors is an integer number (761034505).

Almost surely, 2^17221914980 is an apocalyptic number.

17221914980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17221914980 is an abundant number, since it is smaller than the sum of its proper divisors (19307741260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17221914980 is a wasteful number, since it uses less digits than its factorization.

17221914980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008 (or 7006 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 17221914980 in words is "seventeen billion, two hundred twenty-one million, nine hundred fourteen thousand, nine hundred eighty".