1212181940074 has 8 divisors (see below), whose sum is σ = 2078026183008. Its totient is φ = 519506545740.

The previous prime is 1212181940071. The next prime is 1212181940077. The reversal of 1212181940074 is 4700491812121.

It is an interprime number because it is at equal distance from previous prime (1212181940071) and next prime (1212181940077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1212181940071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43292212132 + ... + 43292212159.

It is an arithmetic number, because the mean of its divisors is an integer number (259753272876).

Almost surely, 2^{1212181940074} is an apocalyptic number.

1212181940074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1212181940074 is a deficient number, since it is larger than the sum of its proper divisors (865844242934).

1212181940074 is an equidigital number, since it uses as much as digits as its factorization.

1212181940074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86584424300.

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 1212181940074 in words is "one trillion, two hundred twelve billion, one hundred eighty-one million, nine hundred forty thousand, seventy-four".