122421143 has 8 divisors (see below), whose sum is σ = 132577200. Its totient is φ = 112370688.

The previous prime is 122421137. The next prime is 122421163. The reversal of 122421143 is 341124221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122421143 - 2¹⁰ = 122420119 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 (122421133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23978 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (16572150).

Almost surely, 2^122421143 is an apocalyptic number.

122421143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122421143 is a deficient number, since it is larger than the sum of its proper divisors (10156057).

122421143 is a wasteful number, since it uses less digits than its factorization.

122421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52801.

The product of its digits is 384, while the sum is 20.

The square root of 122421143 is about 11064.4088409639. The cubic root of 122421143 is about 496.5376029573.

Adding to 122421143 its reverse (341124221), we get a palindrome (463545364).

The spelling of 122421143 in words is "one hundred twenty-two million, four hundred twenty-one thousand, one hundred forty-three".