221122012194 has 24 divisors (see below), whose sum is σ = 479280587292. Its totient is φ = 73679199840.

The previous prime is 221122012183. The next prime is 221122012261. The reversal of 221122012194 is 491210221122.

221122012194 is a `hidden beast` number, since 221 + 1 + 220 + 1 + 219 + 4 = 666.

221122012194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 212793077025 + 8328935169 = 461295^2 + 91263^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2296309 + ... + 2390664.

Almost surely, 2^221122012194 is an apocalyptic number.

221122012194 is an abundant number, since it is smaller than the sum of its proper divisors (258158575098).

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

221122012194 is a wasteful number, since it uses less digits than its factorization.

221122012194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689602 (or 4689599 counting only the distinct ones).

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

The spelling of 221122012194 in words is "two hundred twenty-one billion, one hundred twenty-two million, twelve thousand, one hundred ninety-four".