1212383612 has 96 divisors (see below), whose sum is σ = 2465648640. Its totient is φ = 516672000.

The previous prime is 1212383593. The next prime is 1212383617. The reversal of 1212383612 is 2163832121.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212383617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6698162 + ... + 6698342.

It is an arithmetic number, because the mean of its divisors is an integer number (25683840).

Almost surely, 2^1212383612 is an apocalyptic number.

It is an amenable number.

1212383612 is an abundant number, since it is smaller than the sum of its proper divisors (1253265028).

1212383612 is a wasteful number, since it uses less digits than its factorization.

1212383612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 361 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1212383612 is about 34819.2994185696. The cubic root of 1212383612 is about 1066.3014974392.

The spelling of 1212383612 in words is "one billion, two hundred twelve million, three hundred eighty-three thousand, six hundred twelve".