1221201322202 has 8 divisors (see below), whose sum is σ = 1859142311616. Its totient is φ = 601487218332.

The previous prime is 1221201322189. The next prime is 1221201322213. The reversal of 1221201322202 is 2022231021221.

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

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, 4556721218 + ... + 4556721485.

It is an arithmetic number, because the mean of its divisors is an integer number (232392788952).

Almost surely, 2^{1221201322202} is an apocalyptic number.

1221201322202 is a deficient number, since it is larger than the sum of its proper divisors (637940989414).

1221201322202 is an equidigital number, since it uses as much as digits as its factorization.

1221201322202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9113442772.

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

Adding to 1221201322202 its reverse (2022231021221), we get a palindrome (3243432343423).

The spelling of 1221201322202 in words is "one trillion, two hundred twenty-one billion, two hundred one million, three hundred twenty-two thousand, two hundred two".