2194984639221 has 8 divisors (see below), whose sum is σ = 3192704929824. Its totient is φ = 1330293720720.

The previous prime is 2194984639187. The next prime is 2194984639259. The reversal of 2194984639221 is 1229364894912.

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

It is not a de Polignac number, because 2194984639221 - 2⁷ = 2194984639093 is a prime.

It is a super-2 number, since 2×2194984639221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2194984639921) 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, 33257342986 + ... + 33257343051.

It is an arithmetic number, because the mean of its divisors is an integer number (399088116228).

Almost surely, 2^{2194984639221} is an apocalyptic number.

It is an amenable number.

2194984639221 is a deficient number, since it is larger than the sum of its proper divisors (997720290603).

2194984639221 is a wasteful number, since it uses less digits than its factorization.

2194984639221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66514686051.

The product of its digits is 13436928, while the sum is 60.

The spelling of 2194984639221 in words is "two trillion, one hundred ninety-four billion, nine hundred eighty-four million, six hundred thirty-nine thousand, two hundred twenty-one".