21772228286006 has 8 divisors (see below), whose sum is σ = 35627282649864. Its totient is φ = 9896467402720.

The previous prime is 21772228285991. The next prime is 21772228286021. The reversal of 21772228286006 is 60068282227712.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21772228285991) and next prime (21772228286021).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494823370115 + ... + 494823370158.

It is an arithmetic number, because the mean of its divisors is an integer number (4453410331233).

Almost surely, 2^{21772228286006} is an apocalyptic number.

21772228286006 is a deficient number, since it is larger than the sum of its proper divisors (13855054363858).

21772228286006 is a wasteful number, since it uses less digits than its factorization.

21772228286006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989646740286.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 21772228286006 in words is "twenty-one trillion, seven hundred seventy-two billion, two hundred twenty-eight million, two hundred eighty-six thousand, six".