1219860012 has 48 divisors (see below), whose sum is σ = 3261628160. Its totient is φ = 347602752.

The previous prime is 1219860001. The next prime is 1219860023. The reversal of 1219860012 is 2100689121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1219860001) and next prime (1219860023).

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, 12678 + ... + 50994.

Almost surely, 2^1219860012 is an apocalyptic number.

1219860012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1219860012 is an abundant number, since it is smaller than the sum of its proper divisors (2041768148).

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

1219860012 is a wasteful number, since it uses less digits than its factorization.

1219860012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38710 (or 38708 counting only the distinct ones).

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

The square root of 1219860012 is about 34926.4944132674. The cubic root of 1219860012 is about 1068.4888593671.

The spelling of 1219860012 in words is "one billion, two hundred nineteen million, eight hundred sixty thousand, twelve".