2219129894 has 8 divisors (see below), whose sum is σ = 3329747568. Its totient is φ = 1109214040.

The previous prime is 2219129893. The next prime is 2219129897. The reversal of 2219129894 is 4989219122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219129893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167477 + ... + 180240.

It is an arithmetic number, because the mean of its divisors is an integer number (416218446).

Almost surely, 2^2219129894 is an apocalyptic number.

2219129894 is a deficient number, since it is larger than the sum of its proper divisors (1110617674).

2219129894 is a wasteful number, since it uses less digits than its factorization.

2219129894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350910.

The product of its digits is 186624, while the sum is 47.

The square root of 2219129894 is about 47107.6415669475. The cubic root of 2219129894 is about 1304.3502966185.

The spelling of 2219129894 in words is "two billion, two hundred nineteen million, one hundred twenty-nine thousand, eight hundred ninety-four".