1213225538342 has 8 divisors (see below), whose sum is σ = 1819844258232. Its totient is φ = 606610785600.

The previous prime is 1213225538321. The next prime is 1213225538347. The reversal of 1213225538342 is 2438355223121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1213225538342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213225538347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47384 + ... + 1558427.

It is an arithmetic number, because the mean of its divisors is an integer number (227480532279).

Almost surely, 2^{1213225538342} is an apocalyptic number.

1213225538342 is a deficient number, since it is larger than the sum of its proper divisors (606618719890).

1213225538342 is a wasteful number, since it uses less digits than its factorization.

1213225538342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983574.

The product of its digits is 345600, while the sum is 41.

The spelling of 1213225538342 in words is "one trillion, two hundred thirteen billion, two hundred twenty-five million, five hundred thirty-eight thousand, three hundred forty-two".