1201222111203 has 6 divisors (see below), whose sum is σ = 1735098605084. Its totient is φ = 800814740796.

The previous prime is 1201222111189. The next prime is 1201222111207. The reversal of 1201222111203 is 3021112221021.

It is not a de Polignac number, because 1201222111203 - 2³³ = 1192632176611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201222111207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66734561725 + ... + 66734561742.

Almost surely, 2^{1201222111203} is an apocalyptic number.

1201222111203 is a deficient number, since it is larger than the sum of its proper divisors (533876493881).

1201222111203 is a wasteful number, since it uses less digits than its factorization.

1201222111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133469123473 (or 133469123470 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1201222111203 its reverse (3021112221021), we get a palindrome (4222334332224).

The spelling of 1201222111203 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one hundred eleven thousand, two hundred three".