1218028233412 has 24 divisors (see below), whose sum is σ = 2144424127104. Its totient is φ = 605336003712.

The previous prime is 1218028233397. The next prime is 1218028233427. The reversal of 1218028233412 is 2143328208121.

It is an interprime number because it is at equal distance from previous prime (1218028233397) and next prime (1218028233427).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18087228 + ... + 18154444.

It is an arithmetic number, because the mean of its divisors is an integer number (89351005296).

Almost surely, 2^{1218028233412} is an apocalyptic number.

It is an amenable number.

1218028233412 is a deficient number, since it is larger than the sum of its proper divisors (926395893692).

1218028233412 is a wasteful number, since it uses less digits than its factorization.

1218028233412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94515 (or 94513 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 1218028233412 in words is "one trillion, two hundred eighteen billion, twenty-eight million, two hundred thirty-three thousand, four hundred twelve".