21054425222 has 8 divisors (see below), whose sum is σ = 31646488656. Its totient is φ = 10505595672.

The previous prime is 21054425221. The next prime is 21054425233. The reversal of 21054425222 is 22252445012.

It is a happy number.

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 (21054425221) 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, 10807253 + ... + 10809200.

It is an arithmetic number, because the mean of its divisors is an integer number (3955811082).

Almost surely, 2^21054425222 is an apocalyptic number.

21054425222 is a deficient number, since it is larger than the sum of its proper divisors (10592063434).

21054425222 is a wasteful number, since it uses less digits than its factorization.

21054425222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21616942.

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 21054425222 in words is "twenty-one billion, fifty-four million, four hundred twenty-five thousand, two hundred twenty-two".