1212104666574 has 48 divisors (see below), whose sum is σ = 2693423990400. Its totient is φ = 393739669008.

The previous prime is 1212104666561. The next prime is 1212104666579. The reversal of 1212104666574 is 4756664012121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212104666579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1443844 + ... + 2123415.

It is an arithmetic number, because the mean of its divisors is an integer number (56112999800).

Almost surely, 2^{1212104666574} is an apocalyptic number.

1212104666574 is an abundant number, since it is smaller than the sum of its proper divisors (1481319323826).

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

1212104666574 is a wasteful number, since it uses less digits than its factorization.

1212104666574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567749 (or 3567746 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

Adding to 1212104666574 its reverse (4756664012121), we get a palindrome (5968768678695).

The spelling of 1212104666574 in words is "one trillion, two hundred twelve billion, one hundred four million, six hundred sixty-six thousand, five hundred seventy-four".