1212119112 has 64 divisors (see below), whose sum is σ = 3141529920. Its totient is φ = 389415168.

The previous prime is 1212119107. The next prime is 1212119147. The reversal of 1212119112 is 2119112121.

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, 88638 + ... + 101394.

It is an arithmetic number, because the mean of its divisors is an integer number (49086405).

Almost surely, 2^1212119112 is an apocalyptic number.

1212119112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212119112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570764960).

1212119112 is an abundant number, since it is smaller than the sum of its proper divisors (1929410808).

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

1212119112 is a wasteful number, since it uses less digits than its factorization.

1212119112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12910 (or 12906 counting only the distinct ones).

The product of its digits is 72, while the sum is 21.

The square root of 1212119112 is about 34815.5010304318. The cubic root of 1212119112 is about 1066.2239484809.

The spelling of 1212119112 in words is "one billion, two hundred twelve million, one hundred nineteen thousand, one hundred twelve".