1211946218674 has 8 divisors (see below), whose sum is σ = 1817945694000. Its totient is φ = 605964320676.

The previous prime is 1211946218657. The next prime is 1211946218677. The reversal of 1211946218674 is 4768126491121.

It is a happy number.

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 (1211946218677) 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, 4220584 + ... + 4498579.

It is an arithmetic number, because the mean of its divisors is an integer number (227243211750).

Almost surely, 2^{1211946218674} is an apocalyptic number.

1211946218674 is a deficient number, since it is larger than the sum of its proper divisors (605999475326).

1211946218674 is an equidigital number, since it uses as much as digits as its factorization.

1211946218674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8788664.

The product of its digits is 1161216, while the sum is 52.

The spelling of 1211946218674 in words is "one trillion, two hundred eleven billion, nine hundred forty-six million, two hundred eighteen thousand, six hundred seventy-four".