2121202202211 has 12 divisors (see below), whose sum is σ = 3225219722920. Its totient is φ = 1339706653920.

The previous prime is 2121202202183. The next prime is 2121202202243. The reversal of 2121202202211 is 1122022021212.

It is a happy number.

2121202202211 is a `hidden beast` number, since 21 + 212 + 0 + 220 + 2 + 211 = 666.

It is not a de Polignac number, because 2121202202211 - 2¹⁰ = 2121202201187 is a prime.

It is a super-2 number, since 2×2121202202211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121202202311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6202345450 + ... + 6202345791.

Almost surely, 2^{2121202202211} is an apocalyptic number.

2121202202211 is a deficient number, since it is larger than the sum of its proper divisors (1104017520709).

2121202202211 is a wasteful number, since it uses less digits than its factorization.

2121202202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12404691266 (or 12404691263 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2121202202211 its reverse (1122022021212), we get a palindrome (3243224223423).

The spelling of 2121202202211 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred two thousand, two hundred eleven".