22121612085 has 16 divisors (see below), whose sum is σ = 36217710144. Its totient is φ = 11523816192.

The previous prime is 22121612069. The next prime is 22121612111. The reversal of 22121612085 is 58021612122.

It is not a de Polignac number, because 22121612085 - 2⁴ = 22121612069 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, 17147892 + ... + 17149181.

It is an arithmetic number, because the mean of its divisors is an integer number (2263606884).

Almost surely, 2^22121612085 is an apocalyptic number.

It is an amenable number.

22121612085 is a deficient number, since it is larger than the sum of its proper divisors (14096098059).

22121612085 is a wasteful number, since it uses less digits than its factorization.

22121612085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34297124.

The product of its (nonzero) digits is 3840, while the sum is 30.

The spelling of 22121612085 in words is "twenty-two billion, one hundred twenty-one million, six hundred twelve thousand, eighty-five".