1200221012122 has 32 divisors (see below), whose sum is σ = 2014484774400. Its totient is φ = 531669078720.

The previous prime is 1200221012063. The next prime is 1200221012149. The reversal of 1200221012122 is 2212101220021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200221012096 and 1200221012105.

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, 3280458 + ... + 3627925.

It is an arithmetic number, because the mean of its divisors is an integer number (62952649200).

Almost surely, 2^{1200221012122} is an apocalyptic number.

1200221012122 is a deficient number, since it is larger than the sum of its proper divisors (814263762278).

1200221012122 is a wasteful number, since it uses less digits than its factorization.

1200221012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908598.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200221012122 its reverse (2212101220021), we get a palindrome (3412322232143).

The spelling of 1200221012122 in words is "one trillion, two hundred billion, two hundred twenty-one million, twelve thousand, one hundred twenty-two".