2121202211011 has 32 divisors (see below), whose sum is σ = 2353750902272. Its totient is φ = 1899217393920.

The previous prime is 2121202210993. The next prime is 2121202211017. The reversal of 2121202211011 is 1101122021212.

It is a cyclic number.

It is not a de Polignac number, because 2121202211011 - 2³³ = 2112612276419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121202211017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120356746 + ... + 120374368.

It is an arithmetic number, because the mean of its divisors is an integer number (73554715696).

Almost surely, 2^{2121202211011} is an apocalyptic number.

2121202211011 is a deficient number, since it is larger than the sum of its proper divisors (232548691261).

2121202211011 is a wasteful number, since it uses less digits than its factorization.

2121202211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19163.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121202211011 its reverse (1101122021212), we get a palindrome (3222324232223).

The spelling of 2121202211011 in words is "two trillion, one hundred twenty-one billion, two hundred two million, two hundred eleven thousand, eleven".