1124420013221 has 4 divisors (see below), whose sum is σ = 1128695374752. Its totient is φ = 1120144651692.

The previous prime is 1124420013217. The next prime is 1124420013239. The reversal of 1124420013221 is 1223100244211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1124420013221 - 2² = 1124420013217 is a prime.

It is a super-2 number, since 2×1124420013221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124420013271) 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, 2137680371 + ... + 2137680896.

It is an arithmetic number, because the mean of its divisors is an integer number (282173843688).

Almost surely, 2^{1124420013221} is an apocalyptic number.

It is an amenable number.

1124420013221 is a deficient number, since it is larger than the sum of its proper divisors (4275361531).

1124420013221 is an equidigital number, since it uses as much as digits as its factorization.

1124420013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275361530.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1124420013221 its reverse (1223100244211), we get a palindrome (2347520257432).

The spelling of 1124420013221 in words is "one trillion, one hundred twenty-four billion, four hundred twenty million, thirteen thousand, two hundred twenty-one".