20001111222 has 8 divisors (see below), whose sum is σ = 40002222456. Its totient is φ = 6667037072.

The previous prime is 20001111173. The next prime is 20001111233. The reversal of 20001111222 is 22211110002.

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

20001111222 is an admirable number.

It is a super-2 number, since 2×20001111222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001111198 and 20001111207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666759263 + ... + 1666759274.

It is an arithmetic number, because the mean of its divisors is an integer number (5000277807).

Almost surely, 2^20001111222 is an apocalyptic number.

20001111222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001111222 is a wasteful number, since it uses less digits than its factorization.

20001111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333518542.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20001111222 its reverse (22211110002), we get a palindrome (42212221224).

The spelling of 20001111222 in words is "twenty billion, one million, one hundred eleven thousand, two hundred twenty-two".