221166622315 has 8 divisors (see below), whose sum is σ = 265432476528. Its totient is φ = 176911611360.

The previous prime is 221166622289. The next prime is 221166622331. The reversal of 221166622315 is 513226661122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221166622315 - 2⁵ = 221166622283 is a prime.

It is a Duffinian number.

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, 2665872 + ... + 2747581.

It is an arithmetic number, because the mean of its divisors is an integer number (33179059566).

Almost surely, 2^221166622315 is an apocalyptic number.

221166622315 is a deficient number, since it is larger than the sum of its proper divisors (44265854213).

221166622315 is an equidigital number, since it uses as much as digits as its factorization.

221166622315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421629.

The product of its digits is 51840, while the sum is 37.

The spelling of 221166622315 in words is "two hundred twenty-one billion, one hundred sixty-six million, six hundred twenty-two thousand, three hundred fifteen".