1212211330 has 32 divisors (see below), whose sum is σ = 2438408448. Its totient is φ = 430051200.

The previous prime is 1212211307. The next prime is 1212211373. The reversal of 1212211330 is 331122121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129882 + ... + 138901.

It is an arithmetic number, because the mean of its divisors is an integer number (76200264).

Almost surely, 2^1212211330 is an apocalyptic number.

1212211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212211330 is an abundant number, since it is smaller than the sum of its proper divisors (1226197118).

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

1212211330 is a wasteful number, since it uses less digits than its factorization.

1212211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268842.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1212211330 is about 34816.8253865857. The cubic root of 1212211330 is about 1066.2509872280.

Adding to 1212211330 its reverse (331122121), we get a palindrome (1543333451).

The spelling of 1212211330 in words is "one billion, two hundred twelve million, two hundred eleven thousand, three hundred thirty".