12122143 has 6 divisors (see below), whose sum is σ = 13324472. Its totient is φ = 11020020.

The previous prime is 12122119. The next prime is 12122153. The reversal of 12122143 is 34122121.

It is not a de Polignac number, because 12122143 - 2⁵ = 12122111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49971 + ... + 50212.

Almost surely, 2^12122143 is an apocalyptic number.

12122143 is a deficient number, since it is larger than the sum of its proper divisors (1202329).

12122143 is a wasteful number, since it uses less digits than its factorization.

12122143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100205 (or 100194 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 12122143 is about 3481.6868038352. The cubic root of 12122143 is about 229.7169991236.

Adding to 12122143 its reverse (34122121), we get a palindrome (46244264).

The spelling of 12122143 in words is "twelve million, one hundred twenty-two thousand, one hundred forty-three".