1221112201233 has 8 divisors (see below), whose sum is σ = 1628709307200. Its totient is φ = 813794948048.

The previous prime is 1221112201223. The next prime is 1221112201259. The reversal of 1221112201233 is 3321022111221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221112201233 - 2²⁶ = 1221045092369 is a prime.

It is a super-2 number, since 2×1221112201233² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1221112201223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69953013 + ... + 69970466.

It is an arithmetic number, because the mean of its divisors is an integer number (203588663400).

Almost surely, 2^{1221112201233} is an apocalyptic number.

It is an amenable number.

1221112201233 is a deficient number, since it is larger than the sum of its proper divisors (407597105967).

1221112201233 is a wasteful number, since it uses less digits than its factorization.

1221112201233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139926391.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1221112201233 its reverse (3321022111221), we get a palindrome (4542134312454).

The spelling of 1221112201233 in words is "one trillion, two hundred twenty-one billion, one hundred twelve million, two hundred one thousand, two hundred thirty-three".