219960021294 has 96 divisors (see below), whose sum is σ = 572032450080. Its totient is φ = 60346238976.

The previous prime is 219960021271. The next prime is 219960021343. The reversal of 219960021294 is 492120069912.

219960021294 is a `hidden beast` number, since 2 + 19 + 9 + 600 + 2 + 1 + 29 + 4 = 666.

219960021294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1379527 + ... + 1530690.

It is an arithmetic number, because the mean of its divisors is an integer number (5958671355).

Almost surely, 2^219960021294 is an apocalyptic number.

219960021294 is an abundant number, since it is smaller than the sum of its proper divisors (352072428786).

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

219960021294 is a wasteful number, since it uses less digits than its factorization.

219960021294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910274 (or 2910271 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 219960021294 in words is "two hundred nineteen billion, nine hundred sixty million, twenty-one thousand, two hundred ninety-four".