1122421143 has 16 divisors (see below), whose sum is σ = 1581338880. Its totient is φ = 706192704.

The previous prime is 1122421129. The next prime is 1122421163. The reversal of 1122421143 is 3411242211.

It is not a de Polignac number, because 1122421143 - 2¹² = 1122417047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122421163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22446 + ... + 52427.

It is an arithmetic number, because the mean of its divisors is an integer number (98833680).

Almost surely, 2^1122421143 is an apocalyptic number.

1122421143 is a deficient number, since it is larger than the sum of its proper divisors (458917737).

1122421143 is a wasteful number, since it uses less digits than its factorization.

1122421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75158.

The product of its digits is 384, while the sum is 21.

The square root of 1122421143 is about 33502.5542757563. The cubic root of 1122421143 is about 1039.2466014813.

Adding to 1122421143 its reverse (3411242211), we get a palindrome (4533663354).

The spelling of 1122421143 in words is "one billion, one hundred twenty-two million, four hundred twenty-one thousand, one hundred forty-three".