1212018960 has 160 divisors (see below), whose sum is σ = 3836004480. Its totient is φ = 316514304.

The previous prime is 1212018923. The next prime is 1212018967. The reversal of 1212018960 is 698102121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1212018967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2798904 + ... + 2799336.

It is an arithmetic number, because the mean of its divisors is an integer number (23975028).

Almost surely, 2^1212018960 is an apocalyptic number.

1212018960 is a gapful number since it is divisible by the number (10) 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 1212018960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918002240).

1212018960 is an abundant number, since it is smaller than the sum of its proper divisors (2623985520).

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

1212018960 is a wasteful number, since it uses less digits than its factorization.

1212018960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1212018960 is about 34814.0626758786. The cubic root of 1212018960 is about 1066.1945818944.

The spelling of 1212018960 in words is "one billion, two hundred twelve million, eighteen thousand, nine hundred sixty".