212442242143 has 8 divisors (see below), whose sum is σ = 232194936960. Its totient is φ = 193495779840.

The previous prime is 212442242119. The next prime is 212442242167. The reversal of 212442242143 is 341242244212.

It is an interprime number because it is at equal distance from previous prime (212442242119) and next prime (212442242167).

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 212442242143 - 2²⁹ = 211905371231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212442242113) 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, 201557578 + ... + 201558631.

It is an arithmetic number, because the mean of its divisors is an integer number (29024367120).

Almost surely, 2^212442242143 is an apocalyptic number.

212442242143 is a deficient number, since it is larger than the sum of its proper divisors (19752694817).

212442242143 is a wasteful number, since it uses less digits than its factorization.

212442242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403116257.

The product of its digits is 24576, while the sum is 31.

Adding to 212442242143 its reverse (341242244212), we get a palindrome (553684486355).

The spelling of 212442242143 in words is "two hundred twelve billion, four hundred forty-two million, two hundred forty-two thousand, one hundred forty-three".