4231222420 has 12 divisors (see below), whose sum is σ = 8885567124. Its totient is φ = 1692488960.

The previous prime is 4231222417. The next prime is 4231222433. The reversal of 4231222420 is 242221324.

4231222420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3370034704 + 861187716 = 58052^2 + 29346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4231222391 and 4231222400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105780541 + ... + 105780580.

It is an arithmetic number, because the mean of its divisors is an integer number (740463927).

Almost surely, 2^4231222420 is an apocalyptic number.

It is an amenable number.

4231222420 is an abundant number, since it is smaller than the sum of its proper divisors (4654344704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4231222420 is a wasteful number, since it uses less digits than its factorization.

4231222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211561130 (or 211561128 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4231222420 is about 65047.8471588415. The cubic root of 4231222420 is about 1617.4168072725.

Adding to 4231222420 its reverse (242221324), we get a palindrome (4473443744).

The spelling of 4231222420 in words is "four billion, two hundred thirty-one million, two hundred twenty-two thousand, four hundred twenty".