1402221231 has 6 divisors (see below), whose sum is σ = 2025430680. Its totient is φ = 934814148.

The previous prime is 1402221209. The next prime is 1402221239. The reversal of 1402221231 is 1321222041.

It is a happy number.

1402221231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1402221231 - 2¹⁴ = 1402204847 is a prime.

It is a super-2 number, since 2×1402221231² = 3932448761334310722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402221239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77901171 + ... + 77901188.

It is an arithmetic number, because the mean of its divisors is an integer number (337571780).

Almost surely, 2^1402221231 is an apocalyptic number.

1402221231 is a deficient number, since it is larger than the sum of its proper divisors (623209449).

1402221231 is a wasteful number, since it uses less digits than its factorization.

1402221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155802365 (or 155802362 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1402221231 is about 37446.2445513565. The cubic root of 1402221231 is about 1119.2802643568.

Adding to 1402221231 its reverse (1321222041), we get a palindrome (2723443272).

It can be divided in two parts, 14022 and 21231, that added together give a palindrome (35253).

The spelling of 1402221231 in words is "one billion, four hundred two million, two hundred twenty-one thousand, two hundred thirty-one".