2113220022221 has 12 divisors (see below), whose sum is σ = 2681711494560. Its totient is φ = 1646664951960.

The previous prime is 2113220022191. The next prime is 2113220022343. The reversal of 2113220022221 is 1222200223112.

It is not a de Polignac number, because 2113220022221 - 2²² = 2113215827917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113220022193 and 2113220022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113220021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1960314881 + ... + 1960315958.

It is an arithmetic number, because the mean of its divisors is an integer number (223475957880).

Almost surely, 2^{2113220022221} is an apocalyptic number.

It is an amenable number.

2113220022221 is a deficient number, since it is larger than the sum of its proper divisors (568491472339).

2113220022221 is a wasteful number, since it uses less digits than its factorization.

2113220022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920630864 (or 3920630857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2113220022221 its reverse (1222200223112), we get a palindrome (3335420245333).

The spelling of 2113220022221 in words is "two trillion, one hundred thirteen billion, two hundred twenty million, twenty-two thousand, two hundred twenty-one".