1123043221422 has 128 divisors (see below), whose sum is σ = 2712826183680. Its totient is φ = 343023045120.

The previous prime is 1123043221409. The next prime is 1123043221423. The reversal of 1123043221422 is 2241223403211.

1123043221422 is a `hidden beast` number, since 1 + 1 + 2 + 304 + 322 + 14 + 22 = 666.

It is a super-2 number, since 2×1123043221422² (a number of 25 digits) contains 22 as substring.

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 (1123043221423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8172748 + ... + 8309024.

It is an arithmetic number, because the mean of its divisors is an integer number (21193954560).

Almost surely, 2^{1123043221422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123043221422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356413091840).

1123043221422 is an abundant number, since it is smaller than the sum of its proper divisors (1589782962258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123043221422 is a wasteful number, since it uses less digits than its factorization.

1123043221422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136543 (or 136537 counting only the distinct ones).

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

Adding to 1123043221422 its reverse (2241223403211), we get a palindrome (3364266624633).

The spelling of 1123043221422 in words is "one trillion, one hundred twenty-three billion, forty-three million, two hundred twenty-one thousand, four hundred twenty-two".