20219912205 has 8 divisors (see below), whose sum is σ = 32351859552. Its totient is φ = 10783953168.

The previous prime is 20219912203. The next prime is 20219912261. The reversal of 20219912205 is 50221991202.

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

It is not a de Polignac number, because 20219912205 - 2¹ = 20219912203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20219912203) 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, 673997059 + ... + 673997088.

It is an arithmetic number, because the mean of its divisors is an integer number (4043982444).

Almost surely, 2^20219912205 is an apocalyptic number.

It is an amenable number.

20219912205 is a deficient number, since it is larger than the sum of its proper divisors (12131947347).

20219912205 is a wasteful number, since it uses less digits than its factorization.

20219912205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347994155.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 20219912205 in words is "twenty billion, two hundred nineteen million, nine hundred twelve thousand, two hundred five".