1111244132021 has 8 divisors (see below), whose sum is σ = 1111659046680. Its totient is φ = 1110829298688.

The previous prime is 1111244131999. The next prime is 1111244132023. The reversal of 1111244132021 is 1202314421111.

It can be written as a sum of positive squares in 4 ways, for example, as 283781009521 + 827463122500 = 532711^2 + 909650^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111244132021 is a prime.

It is a super-2 number, since 2×1111244132021² (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 (1111244132023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41654675 + ... + 41681343.

It is an arithmetic number, because the mean of its divisors is an integer number (138957380835).

Almost surely, 2^{1111244132021} is an apocalyptic number.

It is an amenable number.

1111244132021 is a deficient number, since it is larger than the sum of its proper divisors (414914659).

1111244132021 is an equidigital number, since it uses as much as digits as its factorization.

1111244132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40663.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1111244132021 its reverse (1202314421111), we get a palindrome (2313558553132).

The spelling of 1111244132021 in words is "one trillion, one hundred eleven billion, two hundred forty-four million, one hundred thirty-two thousand, twenty-one".