1403111012221 has 4 divisors (see below), whose sum is σ = 1403122628700. Its totient is φ = 1403099395744.

The previous prime is 1403111012207. The next prime is 1403111012263. The reversal of 1403111012221 is 1222101113041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 198571836996 + 1204539175225 = 445614^2 + 1097515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403111012221 - 2⁵ = 1403111012189 is a prime.

It is a super-2 number, since 2×1403111012221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403111012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5625136 + ... + 5869273.

It is an arithmetic number, because the mean of its divisors is an integer number (350780657175).

Almost surely, 2^{1403111012221} is an apocalyptic number.

It is an amenable number.

1403111012221 is a deficient number, since it is larger than the sum of its proper divisors (11616479).

1403111012221 is a wasteful number, since it uses less digits than its factorization.

1403111012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11616478.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1403111012221 its reverse (1222101113041), we get a palindrome (2625212125262).

The spelling of 1403111012221 in words is "one trillion, four hundred three billion, one hundred eleven million, twelve thousand, two hundred twenty-one".