1200100122122 has 32 divisors (see below), whose sum is σ = 1979415978624. Its totient is φ = 541167500800.

The previous prime is 1200100122113. The next prime is 1200100122223. The reversal of 1200100122122 is 2212210010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200100122097 and 1200100122106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4552547 + ... + 4808937.

It is an arithmetic number, because the mean of its divisors is an integer number (61856749332).

Almost surely, 2^{1200100122122} is an apocalyptic number.

1200100122122 is a deficient number, since it is larger than the sum of its proper divisors (779315856502).

1200100122122 is a wasteful number, since it uses less digits than its factorization.

1200100122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258094.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200100122122 its reverse (2212210010021), we get a palindrome (3412310132143).

The spelling of 1200100122122 in words is "one trillion, two hundred billion, one hundred million, one hundred twenty-two thousand, one hundred twenty-two".