20212693017 has 16 divisors (see below), whose sum is σ = 29532131328. Its totient is φ = 12195179280.

The previous prime is 20212693009. The next prime is 20212693021. The reversal of 20212693017 is 71039621202.

It is not a de Polignac number, because 20212693017 - 2³ = 20212693009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20212693057) 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, 1365973 + ... + 1380690.

It is an arithmetic number, because the mean of its divisors is an integer number (1845758208).

Almost surely, 2^20212693017 is an apocalyptic number.

It is an amenable number.

20212693017 is a deficient number, since it is larger than the sum of its proper divisors (9319438311).

20212693017 is a wasteful number, since it uses less digits than its factorization.

20212693017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746900.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 20212693017 in words is "twenty billion, two hundred twelve million, six hundred ninety-three thousand, seventeen".