20001023222 has 8 divisors (see below), whose sum is σ = 30338631000. Its totient is φ = 9888146224.

The previous prime is 20001023219. The next prime is 20001023239. The reversal of 20001023222 is 22232010002.

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

It is a super-2 number, since 2×20001023222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001023197 and 20001023206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56182472 + ... + 56182827.

It is an arithmetic number, because the mean of its divisors is an integer number (3792328875).

Almost surely, 2^20001023222 is an apocalyptic number.

20001023222 is a deficient number, since it is larger than the sum of its proper divisors (10337607778).

20001023222 is a wasteful number, since it uses less digits than its factorization.

20001023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112365390.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20001023222 its reverse (22232010002), we get a palindrome (42233033224).

The spelling of 20001023222 in words is "twenty billion, one million, twenty-three thousand, two hundred twenty-two".