221022211999 has 8 divisors (see below), whose sum is σ = 221978828448. Its totient is φ = 220066344960.

The previous prime is 221022211987. The next prime is 221022212017. The reversal of 221022211999 is 999112220122.

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

It is not a de Polignac number, because 221022211999 - 2¹¹ = 221022209951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022211919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407859 + ... + 779995.

It is an arithmetic number, because the mean of its divisors is an integer number (27747353556).

Almost surely, 2^221022211999 is an apocalyptic number.

221022211999 is a deficient number, since it is larger than the sum of its proper divisors (956616449).

221022211999 is a wasteful number, since it uses less digits than its factorization.

221022211999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374705.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 221022211999 in words is "two hundred twenty-one billion, twenty-two million, two hundred eleven thousand, nine hundred ninety-nine".