200121220222 has 48 divisors (see below), whose sum is σ = 378875742336. Its totient is φ = 77599645200.

The previous prime is 200121220193. The next prime is 200121220231. The reversal of 200121220222 is 222022121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121220196 and 200121220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77493 + ... + 637375.

It is an arithmetic number, because the mean of its divisors is an integer number (7893244632).

Almost surely, 2^200121220222 is an apocalyptic number.

200121220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

200121220222 is a deficient number, since it is larger than the sum of its proper divisors (178754522114).

200121220222 is a wasteful number, since it uses less digits than its factorization.

200121220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560125 (or 560114 counting only the distinct ones).

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

Adding to 200121220222 its reverse (222022121002), we get a palindrome (422143341224).

The spelling of 200121220222 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".