1421331212 has 24 divisors (see below), whose sum is σ = 2851269120. Its totient is φ = 607297680.

The previous prime is 1421331211. The next prime is 1421331227. The reversal of 1421331212 is 2121331241.

It is not an unprimeable number, because it can be changed into a prime (1421331211) 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, 67412 + ... + 85947.

It is an arithmetic number, because the mean of its divisors is an integer number (118802880).

Almost surely, 2^1421331212 is an apocalyptic number.

It is an amenable number.

1421331212 is an abundant number, since it is smaller than the sum of its proper divisors (1429937908).

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

1421331212 is a wasteful number, since it uses less digits than its factorization.

1421331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153701 (or 153699 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1421331212 is about 37700.5465742872. The cubic root of 1421331212 is about 1124.3419920319.

Adding to 1421331212 its reverse (2121331241), we get a palindrome (3542662453).

The spelling of 1421331212 in words is "one billion, four hundred twenty-one million, three hundred thirty-one thousand, two hundred twelve".