2121202210211 has 32 divisors (see below), whose sum is σ = 2476582272000. Its totient is φ = 1779422515200.

The previous prime is 2121202210207. The next prime is 2121202210223. The reversal of 2121202210211 is 1120122021212.

It is a cyclic number.

It is not a de Polignac number, because 2121202210211 - 2² = 2121202210207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121202210211.

It is not an unprimeable number, because it can be changed into a prime (2121202210241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23883236 + ... + 23971886.

It is an arithmetic number, because the mean of its divisors is an integer number (77393196000).

Almost surely, 2^{2121202210211} is an apocalyptic number.

2121202210211 is a deficient number, since it is larger than the sum of its proper divisors (355380061789).

2121202210211 is a wasteful number, since it uses less digits than its factorization.

2121202210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89139.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121202210211 its reverse (1120122021212), we get a palindrome (3241324231423).

The spelling of 2121202210211 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred ten thousand, two hundred eleven".