221022211194 has 80 divisors (see below), whose sum is σ = 500169022848. Its totient is φ = 72943633728.

The previous prime is 221022211133. The next prime is 221022211237. The reversal of 221022211194 is 491112220122.

221022211194 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×221022211194³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49521007 + ... + 49525469.

Almost surely, 2^221022211194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221022211194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250084511424).

221022211194 is an abundant number, since it is smaller than the sum of its proper divisors (279146811654).

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

221022211194 is a wasteful number, since it uses less digits than its factorization.

221022211194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7441 (or 7432 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 221022211194 in words is "two hundred twenty-one billion, twenty-two million, two hundred eleven thousand, one hundred ninety-four".