2222022121220 has 24 divisors (see below), whose sum is σ = 5090450678208. Its totient is φ = 808008044000.

The previous prime is 2222022121177. The next prime is 2222022121229. The reversal of 2222022121220 is 221212202222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2222022121192 and 2222022121201.

It is not an unprimeable number, because it can be changed into a prime (2222022121229) 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 7 ways as a sum of consecutive naturals, for example, 5050050056 + ... + 5050050495.

It is an arithmetic number, because the mean of its divisors is an integer number (212102111592).

Almost surely, 2^{2222022121220} is an apocalyptic number.

2222022121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222022121220 is an abundant number, since it is smaller than the sum of its proper divisors (2868428556988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222022121220 is a wasteful number, since it uses less digits than its factorization.

2222022121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100100571 (or 10100100569 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2222022121220 its reverse (221212202222), we get a palindrome (2443234323442).

The spelling of 2222022121220 in words is "two trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty".