2112022210221 has 64 divisors (see below), whose sum is σ = 3901284864000. Its totient is φ = 1097072424000.

The previous prime is 2112022210141. The next prime is 2112022210223. The reversal of 2112022210221 is 1220122202112.

It is a happy number.

2112022210221 is a `hidden beast` number, since 21 + 1 + 202 + 221 + 0 + 221 = 666.

It is not a de Polignac number, because 2112022210221 - 2⁹ = 2112022209709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2112022210194 and 2112022210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112022210223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36043455 + ... + 36102003.

It is an arithmetic number, because the mean of its divisors is an integer number (60957576000).

Almost surely, 2^{2112022210221} is an apocalyptic number.

2112022210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2112022210221 is a deficient number, since it is larger than the sum of its proper divisors (1789262653779).

2112022210221 is a wasteful number, since it uses less digits than its factorization.

2112022210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75927 (or 75921 counting only the distinct ones).

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

Adding to 2112022210221 its reverse (1220122202112), we get a palindrome (3332144412333).

The spelling of 2112022210221 in words is "two trillion, one hundred twelve billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".