20045077222 has 4 divisors (see below), whose sum is σ = 30067615836. Its totient is φ = 10022538610.

The previous prime is 20045077187. The next prime is 20045077229. The reversal of 20045077222 is 22277054002.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045077229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011269304 + ... + 5011269307.

It is an arithmetic number, because the mean of its divisors is an integer number (7516903959).

Almost surely, 2^20045077222 is an apocalyptic number.

20045077222 is a deficient number, since it is larger than the sum of its proper divisors (10022538614).

20045077222 is a wasteful number, since it uses less digits than its factorization.

20045077222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022538613.

The product of its (nonzero) digits is 15680, while the sum is 31.

The spelling of 20045077222 in words is "twenty billion, forty-five million, seventy-seven thousand, two hundred twenty-two".