1222422242220 has 120 divisors (see below), whose sum is σ = 4001513703264. Its totient is φ = 311806243584.

The previous prime is 1222422242201. The next prime is 1222422242287. The reversal of 1222422242220 is 222422242221.

1222422242220 is a `hidden beast` number, since 12 + 2 + 2 + 4 + 222 + 422 + 2 + 0 = 666.

It is a super-2 number, since 2×1222422242220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 16366689 + ... + 16441208.

Almost surely, 2^{1222422242220} is an apocalyptic number.

1222422242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222422242220 is an abundant number, since it is smaller than the sum of its proper divisors (2779091461044).

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

1222422242220 is a wasteful number, since it uses less digits than its factorization.

1222422242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32807941 (or 32807930 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 1222422242220 its reverse (222422242221), we get a palindrome (1444844484441).

Subtracting from 1222422242220 its reverse (222422242221), we obtain a palindrome (999999999999).

The spelling of 1222422242220 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-two million, two hundred forty-two thousand, two hundred twenty".