1222001021103 has 4 divisors (see below), whose sum is σ = 1629334694808. Its totient is φ = 814667347400.

The previous prime is 1222001021053. The next prime is 1222001021191. The reversal of 1222001021103 is 3011201002221.

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 1222001021103 - 2²⁰ = 1221999972527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222001021603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203666836848 + ... + 203666836853.

It is an arithmetic number, because the mean of its divisors is an integer number (407333673702).

Almost surely, 2^{1222001021103} is an apocalyptic number.

1222001021103 is a deficient number, since it is larger than the sum of its proper divisors (407333673705).

1222001021103 is an equidigital number, since it uses as much as digits as its factorization.

1222001021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407333673704.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1222001021103 its reverse (3011201002221), we get a palindrome (4233202023324).

The spelling of 1222001021103 in words is "one trillion, two hundred twenty-two billion, one million, twenty-one thousand, one hundred three".