200121122202122 has 16 divisors (see below), whose sum is σ = 341708793642432. Its totient is φ = 87009183565920.

The previous prime is 200121122202119. The next prime is 200121122202139. The reversal of 200121122202122 is 221202221121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121122202094 and 200121122202103.

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, 197748143963 + ... + 197748144974.

It is an arithmetic number, because the mean of its divisors is an integer number (21356799602652).

Almost surely, 2^{200121122202122} is an apocalyptic number.

200121122202122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

200121122202122 is a deficient number, since it is larger than the sum of its proper divisors (141587671440310).

200121122202122 is a wasteful number, since it uses less digits than its factorization.

200121122202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395496288973.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 200121122202122 its reverse (221202221121002), we get a palindrome (421323343323124).

The spelling of 200121122202122 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred two thousand, one hundred twenty-two".