1212031330 has 16 divisors (see below), whose sum is σ = 2183920704. Its totient is φ = 484309360.

The previous prime is 1212031319. The next prime is 1212031343. The reversal of 1212031330 is 331302121.

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, 52702 + ... + 72121.

It is an arithmetic number, because the mean of its divisors is an integer number (136495044).

Almost surely, 2^1212031330 is an apocalyptic number.

1212031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212031330 is a deficient number, since it is larger than the sum of its proper divisors (971889374).

1212031330 is a wasteful number, since it uses less digits than its factorization.

1212031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125801.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1212031330 is about 34814.2403335187. The cubic root of 1212031330 is about 1066.1982091155.

Adding to 1212031330 its reverse (331302121), we get a palindrome (1543333451).

It can be divided in two parts, 121203 and 1330, that multiplied together give a triangular number (161199990 = T₁₇₉₅₅).

The spelling of 1212031330 in words is "one billion, two hundred twelve million, thirty-one thousand, three hundred thirty".