1322120201042 has 4 divisors (see below), whose sum is σ = 1983180301566. Its totient is φ = 661060100520.

The previous prime is 1322120201009. The next prime is 1322120201119. The reversal of 1322120201042 is 2401020212231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1301992820401 + 20127380641 = 1141049^2 + 141871^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330530050259 + ... + 330530050262.

Almost surely, 2^{1322120201042} is an apocalyptic number.

1322120201042 is a deficient number, since it is larger than the sum of its proper divisors (661060100524).

1322120201042 is an equidigital number, since it uses as much as digits as its factorization.

1322120201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661060100523.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1322120201042 its reverse (2401020212231), we get a palindrome (3723140413273).

The spelling of 1322120201042 in words is "one trillion, three hundred twenty-two billion, one hundred twenty million, two hundred one thousand, forty-two".