21772228286005 has 16 divisors (see below), whose sum is σ = 27503644006080. Its totient is φ = 16499928051072.

The previous prime is 21772228285991. The next prime is 21772228286021. The reversal of 21772228286005 is 50068282227712.

It is a cyclic number.

It is not a de Polignac number, because 21772228286005 - 2¹⁷ = 21772228154933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6444624 + ... + 9223753.

It is an arithmetic number, because the mean of its divisors is an integer number (1718977750380).

Almost surely, 2^{21772228286005} is an apocalyptic number.

It is an amenable number.

21772228286005 is a deficient number, since it is larger than the sum of its proper divisors (5731415720075).

21772228286005 is a wasteful number, since it uses less digits than its factorization.

21772228286005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15683028.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 21772228286005 in words is "twenty-one trillion, seven hundred seventy-two billion, two hundred twenty-eight million, two hundred eighty-six thousand, five".