20313223222 has 32 divisors (see below), whose sum is σ = 30975890400. Its totient is φ = 9989548800.

The previous prime is 20313223219. The next prime is 20313223243. The reversal of 20313223222 is 22232231302.

It is a super-2 number, since 2×20313223222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20313223193 and 20313223202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32922258 + ... + 32922874.

It is an arithmetic number, because the mean of its divisors is an integer number (967996575).

Almost surely, 2^20313223222 is an apocalyptic number.

20313223222 is a deficient number, since it is larger than the sum of its proper divisors (10662667178).

20313223222 is a wasteful number, since it uses less digits than its factorization.

20313223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20313223222 its reverse (22232231302), we get a palindrome (42545454524).

The spelling of 20313223222 in words is "twenty billion, three hundred thirteen million, two hundred twenty-three thousand, two hundred twenty-two".