2113212030221 has 16 divisors (see below), whose sum is σ = 2282804259840. Its totient is φ = 1948962385920.

The previous prime is 2113212030197. The next prime is 2113212030239. The reversal of 2113212030221 is 1220302123112.

It is a cyclic number.

It is not a de Polignac number, because 2113212030221 - 2²⁶ = 2113144921357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113212030193 and 2113212030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113212030271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639316 + ... + 5074413.

It is an arithmetic number, because the mean of its divisors is an integer number (142675266240).

Almost surely, 2^{2113212030221} is an apocalyptic number.

It is an amenable number.

2113212030221 is a deficient number, since it is larger than the sum of its proper divisors (169592229619).

2113212030221 is a wasteful number, since it uses less digits than its factorization.

2113212030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714004.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2113212030221 its reverse (1220302123112), we get a palindrome (3333514153333).

The spelling of 2113212030221 in words is "two trillion, one hundred thirteen billion, two hundred twelve million, thirty thousand, two hundred twenty-one".