2121202122202 has 16 divisors (see below), whose sum is σ = 3404172520800. Its totient is φ = 988308149040.

The previous prime is 2121202122199. The next prime is 2121202122217. The reversal of 2121202122202 is 2022212021212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2121202122202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457547752 + ... + 457552387.

It is an arithmetic number, because the mean of its divisors is an integer number (212760782550).

Almost surely, 2^{2121202122202} is an apocalyptic number.

2121202122202 is a deficient number, since it is larger than the sum of its proper divisors (1282970398598).

2121202122202 is a wasteful number, since it uses less digits than its factorization.

2121202122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915100221.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2121202122202 its reverse (2022212021212), we get a palindrome (4143414143414).

The spelling of 2121202122202 in words is "two trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, two hundred two".