1123422043221 has 40 divisors (see below), whose sum is σ = 1767896055200. Its totient is φ = 708978860640.

The previous prime is 1123422043193. The next prime is 1123422043241. The reversal of 1123422043221 is 1223402243211.

1123422043221 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 4 + 220 + 432 + 2 + 1 = 666.

It is not a de Polignac number, because 1123422043221 - 2⁵ = 1123422043189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123422043241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1704135 + ... + 2269563.

It is an arithmetic number, because the mean of its divisors is an integer number (44197401380).

Almost surely, 2^{1123422043221} is an apocalyptic number.

It is an amenable number.

1123422043221 is a deficient number, since it is larger than the sum of its proper divisors (644474011979).

1123422043221 is a wasteful number, since it uses less digits than its factorization.

1123422043221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566751 (or 566742 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1123422043221 its reverse (1223402243211), we get a palindrome (2346824286432).

The spelling of 1123422043221 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-two million, forty-three thousand, two hundred twenty-one".