1421333212 has 72 divisors (see below), whose sum is σ = 2864187200. Its totient is φ = 613370880.

The previous prime is 1421333149. The next prime is 1421333213. The reversal of 1421333212 is 2123331241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421333213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4072414 + ... + 4072762.

Almost surely, 2^1421333212 is an apocalyptic number.

It is an amenable number.

1421333212 is an abundant number, since it is smaller than the sum of its proper divisors (1442853988).

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

1421333212 is a wasteful number, since it uses less digits than its factorization.

1421333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 652 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1421333212 is about 37700.5730990923. The cubic root of 1421333212 is about 1124.3425193973.

Adding to 1421333212 its reverse (2123331241), we get a palindrome (3544664453).

The spelling of 1421333212 in words is "one billion, four hundred twenty-one million, three hundred thirty-three thousand, two hundred twelve".