1212332120 has 16 divisors (see below), whose sum is σ = 2727747360. Its totient is φ = 484932832.

The previous prime is 1212332111. The next prime is 1212332137. The reversal of 1212332120 is 212332121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15154112 + ... + 15154191.

It is an arithmetic number, because the mean of its divisors is an integer number (170484210).

Almost surely, 2^1212332120 is an apocalyptic number.

1212332120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212332120 is an abundant number, since it is smaller than the sum of its proper divisors (1515415240).

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

1212332120 is a wasteful number, since it uses less digits than its factorization.

1212332120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30308314 (or 30308310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1212332120 is about 34818.5599931990. The cubic root of 1212332120 is about 1066.2864013444.

Adding to 1212332120 its reverse (212332121), we get a palindrome (1424664241).

Subtracting from 1212332120 its reverse (212332121), we obtain a palindrome (999999999).

The spelling of 1212332120 in words is "one billion, two hundred twelve million, three hundred thirty-two thousand, one hundred twenty".