2221120422 has 24 divisors (see below), whose sum is σ = 4815851040. Its totient is φ = 739846800.

The previous prime is 2221120393. The next prime is 2221120423. The reversal of 2221120422 is 2240211222.

2221120422 is a `hidden beast` number, since 2 + 221 + 1 + 20 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2221120395 and 2221120404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17454 + ... + 68897.

It is an arithmetic number, because the mean of its divisors is an integer number (200660460).

Almost surely, 2^2221120422 is an apocalyptic number.

2221120422 is an abundant number, since it is smaller than the sum of its proper divisors (2594730618).

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

2221120422 is a wasteful number, since it uses less digits than its factorization.

2221120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87788 (or 87785 counting only the distinct ones).

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

The square root of 2221120422 is about 47128.7642740609. The cubic root of 2221120422 is about 1304.7401746341.

Adding to 2221120422 its reverse (2240211222), we get a palindrome (4461331644).

The spelling of 2221120422 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, four hundred twenty-two".