4021431222 has 16 divisors (see below), whose sum is σ = 8174713392. Its totient is φ = 1318501920.

The previous prime is 4021431221. The next prime is 4021431229. The reversal of 4021431222 is 2221341204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021431221) 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, 5493393 + ... + 5494124.

It is an arithmetic number, because the mean of its divisors is an integer number (510919587).

Almost surely, 2^4021431222 is an apocalyptic number.

4021431222 is an abundant number, since it is smaller than the sum of its proper divisors (4153282170).

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

4021431222 is a wasteful number, since it uses less digits than its factorization.

4021431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987583.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4021431222 is about 63414.7555542084. The cubic root of 4021431222 is about 1590.2309992296.

Adding to 4021431222 its reverse (2221341204), we get a palindrome (6242772426).

The spelling of 4021431222 in words is "four billion, twenty-one million, four hundred thirty-one thousand, two hundred twenty-two".