20950022217 has 8 divisors (see below), whose sum is σ = 28582976224. Its totient is φ = 13641874848.

The previous prime is 20950022129. The next prime is 20950022221. The reversal of 20950022217 is 71222005902.

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

It is not a de Polignac number, because 20950022217 - 2⁷ = 20950022089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20950022227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81201508 + ... + 81201765.

It is an arithmetic number, because the mean of its divisors is an integer number (3572872028).

Almost surely, 2^20950022217 is an apocalyptic number.

It is an amenable number.

20950022217 is a deficient number, since it is larger than the sum of its proper divisors (7632954007).

20950022217 is a wasteful number, since it uses less digits than its factorization.

20950022217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162403319.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 20950022217 in words is "twenty billion, nine hundred fifty million, twenty-two thousand, two hundred seventeen".