2122220020221 has 24 divisors (see below), whose sum is σ = 3504625747584. Its totient is φ = 1212254627040.

The previous prime is 2122220020201. The next prime is 2122220020229. The reversal of 2122220020221 is 1220200222212.

2122220020221 is a `hidden beast` number, since 2 + 1 + 222 + 200 + 20 + 221 = 666.

It is not a de Polignac number, because 2122220020221 - 2⁵ = 2122220020189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122220020194 and 2122220020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122220020229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5972161 + ... + 6317526.

It is an arithmetic number, because the mean of its divisors is an integer number (146026072816).

Almost surely, 2^{2122220020221} is an apocalyptic number.

2122220020221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2122220020221 is a deficient number, since it is larger than the sum of its proper divisors (1382405727363).

2122220020221 is a wasteful number, since it uses less digits than its factorization.

2122220020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12292441 (or 12292438 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2122220020221 its reverse (1220200222212), we get a palindrome (3342420242433).

The spelling of 2122220020221 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, twenty thousand, two hundred twenty-one".