20323012222 has 4 divisors (see below), whose sum is σ = 30484518336. Its totient is φ = 10161506110.

The previous prime is 20323012181. The next prime is 20323012231. The reversal of 20323012222 is 22221032302.

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

It is a super-2 number, since 2×20323012222² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20323012222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5080753054 + ... + 5080753057.

It is an arithmetic number, because the mean of its divisors is an integer number (7621129584).

Almost surely, 2^20323012222 is an apocalyptic number.

20323012222 is a deficient number, since it is larger than the sum of its proper divisors (10161506114).

20323012222 is a wasteful number, since it uses less digits than its factorization.

20323012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161506113.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20323012222 its reverse (22221032302), we get a palindrome (42544044524).

The spelling of 20323012222 in words is "twenty billion, three hundred twenty-three million, twelve thousand, two hundred twenty-two".