1201221101122 has 16 divisors (see below), whose sum is σ = 2065346674560. Its totient is φ = 513281418048.

The previous prime is 1201221101099. The next prime is 1201221101153. The reversal of 1201221101122 is 2211011221021.

It is a junction number, because it is equal to n+sod(n) for n = 1201221101096 and 1201221101105.

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, 127297222 + ... + 127306657.

It is an arithmetic number, because the mean of its divisors is an integer number (129084167160).

Almost surely, 2^{1201221101122} is an apocalyptic number.

1201221101122 is a deficient number, since it is larger than the sum of its proper divisors (864125573438).

1201221101122 is a wasteful number, since it uses less digits than its factorization.

1201221101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254604225.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201221101122 its reverse (2211011221021), we get a palindrome (3412232322143).

The spelling of 1201221101122 in words is "one trillion, two hundred one billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty-two".