1200001001122 has 32 divisors (see below), whose sum is σ = 2244829178880. Its totient is φ = 467392969680.

The previous prime is 1200001001117. The next prime is 1200001001237. The reversal of 1200001001122 is 2211001000021.

It is a junction number, because it is equal to n+sod(n) for n = 1200001001099 and 1200001001108.

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, 648622 + ... + 1679497.

It is an arithmetic number, because the mean of its divisors is an integer number (70150911840).

Almost surely, 2^{1200001001122} is an apocalyptic number.

1200001001122 is a deficient number, since it is larger than the sum of its proper divisors (1044828177758).

1200001001122 is a wasteful number, since it uses less digits than its factorization.

1200001001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331486.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200001001122 its reverse (2211001000021), we get a palindrome (3411002001143).

The spelling of 1200001001122 in words is "one trillion, two hundred billion, one million, one thousand, one hundred twenty-two".