1342320012221 has 4 divisors (see below), whose sum is σ = 1342508362272. Its totient is φ = 1342131662172.

The previous prime is 1342320012211. The next prime is 1342320012227. The reversal of 1342320012221 is 1222100232431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342320012221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342320012227) 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, 94164335 + ... + 94178588.

It is an arithmetic number, because the mean of its divisors is an integer number (335627090568).

Almost surely, 2^{1342320012221} is an apocalyptic number.

It is an amenable number.

1342320012221 is a deficient number, since it is larger than the sum of its proper divisors (188350051).

1342320012221 is an equidigital number, since it uses as much as digits as its factorization.

1342320012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188350050.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1342320012221 its reverse (1222100232431), we get a palindrome (2564420244652).

The spelling of 1342320012221 in words is "one trillion, three hundred forty-two billion, three hundred twenty million, twelve thousand, two hundred twenty-one".