1221210201202 has 8 divisors (see below), whose sum is σ = 1831823017200. Its totient is φ = 610602528804.

The previous prime is 1221210201091. The next prime is 1221210201203. The reversal of 1221210201202 is 2021020121221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1221210201203) 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, 624252 + ... + 1682887.

It is an arithmetic number, because the mean of its divisors is an integer number (228977877150).

Almost surely, 2^{1221210201202} is an apocalyptic number.

1221210201202 is a deficient number, since it is larger than the sum of its proper divisors (610612815998).

1221210201202 is a wasteful number, since it uses less digits than its factorization.

1221210201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571800.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1221210201202 its reverse (2021020121221), we get a palindrome (3242230322423).

The spelling of 1221210201202 in words is "one trillion, two hundred twenty-one billion, two hundred ten million, two hundred one thousand, two hundred two".