1421431212 has 24 divisors (see below), whose sum is σ = 3318324912. Its totient is φ = 473574400.

The previous prime is 1421431171. The next prime is 1421431223. The reversal of 1421431212 is 2121341241.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3489 + ... + 53432.

It is an arithmetic number, because the mean of its divisors is an integer number (138263538).

Almost surely, 2^1421431212 is an apocalyptic number.

1421431212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421431212 is an abundant number, since it is smaller than the sum of its proper divisors (1896893700).

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

1421431212 is a wasteful number, since it uses less digits than its factorization.

1421431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59009 (or 59007 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1421431212 is about 37701.8727916797. The cubic root of 1421431212 is about 1124.3683596984.

Adding to 1421431212 its reverse (2121341241), we get a palindrome (3542772453).

The spelling of 1421431212 in words is "one billion, four hundred twenty-one million, four hundred thirty-one thousand, two hundred twelve".