22021213294 has 8 divisors (see below), whose sum is σ = 34770336840. Its totient is φ = 10431101016.

The previous prime is 22021213259. The next prime is 22021213301. The reversal of 22021213294 is 49231212022.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289752769 + ... + 289752844.

It is an arithmetic number, because the mean of its divisors is an integer number (4346292105).

Almost surely, 2^22021213294 is an apocalyptic number.

22021213294 is a deficient number, since it is larger than the sum of its proper divisors (12749123546).

22021213294 is a wasteful number, since it uses less digits than its factorization.

22021213294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579505634.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 22021213294 in words is "twenty-two billion, twenty-one million, two hundred thirteen thousand, two hundred ninety-four".