1220101113203 has 4 divisors (see below), whose sum is σ = 1394401272240. Its totient is φ = 1045800954168.

The previous prime is 1220101113169. The next prime is 1220101113239. The reversal of 1220101113203 is 3023111010221.

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 1220101113203 - 2¹⁰ = 1220101112179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220101113403) 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, 87150079508 + ... + 87150079521.

It is an arithmetic number, because the mean of its divisors is an integer number (348600318060).

Almost surely, 2^{1220101113203} is an apocalyptic number.

1220101113203 is a deficient number, since it is larger than the sum of its proper divisors (174300159037).

1220101113203 is an equidigital number, since it uses as much as digits as its factorization.

1220101113203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174300159036.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1220101113203 its reverse (3023111010221), we get a palindrome (4243212123424).

The spelling of 1220101113203 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred thirteen thousand, two hundred three".