2121201020222 has 32 divisors (see below), whose sum is σ = 3434979502080. Its totient is φ = 979545584160.

The previous prime is 2121201020207. The next prime is 2121201020231. The reversal of 2121201020222 is 2220201021212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121201020222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047197 + ... + 2310632.

It is an arithmetic number, because the mean of its divisors is an integer number (107343109440).

Almost surely, 2^{2121201020222} is an apocalyptic number.

2121201020222 is a deficient number, since it is larger than the sum of its proper divisors (1313778481858).

2121201020222 is a wasteful number, since it uses less digits than its factorization.

2121201020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358328.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2121201020222 its reverse (2220201021212), we get a palindrome (4341402041434).

The spelling of 2121201020222 in words is "two trillion, one hundred twenty-one billion, two hundred one million, twenty thousand, two hundred twenty-two".