1321203121022 has 8 divisors (see below), whose sum is σ = 2019197222856. Its totient is φ = 648137380072.

The previous prime is 1321203120967. The next prime is 1321203121037. The reversal of 1321203121022 is 2201213021231.

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

It is a junction number, because it is equal to n+sod(n) for n = 1321203120985 and 1321203121003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6232090088 + ... + 6232090299.

It is an arithmetic number, because the mean of its divisors is an integer number (252399652857).

Almost surely, 2^{1321203121022} is an apocalyptic number.

1321203121022 is a deficient number, since it is larger than the sum of its proper divisors (697994101834).

1321203121022 is a wasteful number, since it uses less digits than its factorization.

1321203121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464180442.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1321203121022 its reverse (2201213021231), we get a palindrome (3522416142253).

The spelling of 1321203121022 in words is "one trillion, three hundred twenty-one billion, two hundred three million, one hundred twenty-one thousand, twenty-two".