1220000111203 has 4 divisors (see below), whose sum is σ = 1240000113088. Its totient is φ = 1200000109320.

The previous prime is 1220000111201. The next prime is 1220000111261. The reversal of 1220000111203 is 3021110000221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220000111203 - 2¹ = 1220000111201 is a prime.

It is a super-2 number, since 2×1220000111203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220000111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10000000851 + ... + 10000000972.

It is an arithmetic number, because the mean of its divisors is an integer number (310000028272).

Almost surely, 2^{1220000111203} is an apocalyptic number.

1220000111203 is a deficient number, since it is larger than the sum of its proper divisors (20000001885).

1220000111203 is an equidigital number, since it uses as much as digits as its factorization.

1220000111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20000001884.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1220000111203 its reverse (3021110000221), we get a palindrome (4241110111424).

The spelling of 1220000111203 in words is "one trillion, two hundred twenty billion, one hundred eleven thousand, two hundred three".