1421213120 has 56 divisors (see below), whose sum is σ = 3387535008. Its totient is φ = 567936000.

The previous prime is 1421213113. The next prime is 1421213191. The reversal of 1421213120 is 213121241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555845 + ... + 558395.

Almost surely, 2^1421213120 is an apocalyptic number.

1421213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421213120 is an abundant number, since it is smaller than the sum of its proper divisors (1966321888).

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

1421213120 is a wasteful number, since it uses less digits than its factorization.

1421213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309 (or 4299 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1421213120 is about 37698.9803575640. The cubic root of 1421213120 is about 1124.3108523344.

Adding to 1421213120 its reverse (213121241), we get a palindrome (1634334361).

The spelling of 1421213120 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, one hundred twenty".