200121022222 has 16 divisors (see below), whose sum is σ = 335457856944. Its totient is φ = 88745464000.

The previous prime is 200121022219. The next prime is 200121022273. The reversal of 200121022222 is 222220121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121022196 and 200121022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110930929 + ... + 110932732.

It is an arithmetic number, because the mean of its divisors is an integer number (20966116059).

Almost surely, 2^200121022222 is an apocalyptic number.

200121022222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

200121022222 is a deficient number, since it is larger than the sum of its proper divisors (135336834722).

200121022222 is a wasteful number, since it uses less digits than its factorization.

200121022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221863715.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 200121022222 its reverse (222220121002), we get a palindrome (422341143224).

The spelling of 200121022222 in words is "two hundred billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-two".