20020000022197 has 16 divisors (see below), whose sum is σ = 23629654316160. Its totient is φ = 16602941245248.

The previous prime is 20020000022177. The next prime is 20020000022221. The reversal of 20020000022197 is 79122000002002.

It is a cyclic number.

It is not a de Polignac number, because 20020000022197 - 2¹⁹ = 20019999497909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020000022177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215867878 + ... + 215960599.

It is an arithmetic number, because the mean of its divisors is an integer number (1476853394760).

Almost surely, 2^{20020000022197} is an apocalyptic number.

It is an amenable number.

20020000022197 is a deficient number, since it is larger than the sum of its proper divisors (3609654293963).

20020000022197 is a wasteful number, since it uses less digits than its factorization.

20020000022197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431828700.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 20020000022197 its reverse (79122000002002), we get a palindrome (99142000024199).

The spelling of 20020000022197 in words is "twenty trillion, twenty billion, twenty-two thousand, one hundred ninety-seven".