4243222420431 has 16 divisors (see below), whose sum is σ = 5714150930400. Its totient is φ = 2800596394368.

The previous prime is 4243222420427. The next prime is 4243222420441. The reversal of 4243222420431 is 1340242223424.

It is a happy number.

It is not a de Polignac number, because 4243222420431 - 2² = 4243222420427 is a prime.

It is a super-2 number, since 2×4243222420431² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4243222420392 and 4243222420401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243222420441) 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, 4840536 + ... + 5649533.

It is an arithmetic number, because the mean of its divisors is an integer number (357134433150).

Almost surely, 2^{4243222420431} is an apocalyptic number.

4243222420431 is a deficient number, since it is larger than the sum of its proper divisors (1470928509969).

4243222420431 is a wasteful number, since it uses less digits than its factorization.

4243222420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491418.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 4243222420431 its reverse (1340242223424), we get a palindrome (5583464643855).

The spelling of 4243222420431 in words is "four trillion, two hundred forty-three billion, two hundred twenty-two million, four hundred twenty thousand, four hundred thirty-one".