1000200121122 has 32 divisors (see below), whose sum is σ = 2162594865600. Its totient is φ = 307316109888.

The previous prime is 1000200121073. The next prime is 1000200121153. The reversal of 1000200121122 is 2211210020001.

It is a junction number, because it is equal to n+sod(n) for n = 1000200121098 and 1000200121107.

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 15 ways as a sum of consecutive naturals, for example, 118559097 + ... + 118567532.

It is an arithmetic number, because the mean of its divisors is an integer number (67581089550).

Almost surely, 2^{1000200121122} is an apocalyptic number.

1000200121122 is an abundant number, since it is smaller than the sum of its proper divisors (1162394744478).

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

1000200121122 is a wasteful number, since it uses less digits than its factorization.

1000200121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237126690.

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

Adding to 1000200121122 its reverse (2211210020001), we get a palindrome (3211410141123).

The spelling of 1000200121122 in words is "one trillion, two hundred million, one hundred twenty-one thousand, one hundred twenty-two".