22112210001220 has 48 divisors (see below), whose sum is σ = 48905336289600. Its totient is φ = 8374955644800.

The previous prime is 22112210001197. The next prime is 22112210001223. The reversal of 22112210001220 is 2210001221122.

It is a happy number.

It is a super-2 number, since 2×22112210001220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22112210001194 and 22112210001203.

It is not an unprimeable number, because it can be changed into a prime (22112210001223) 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 15 ways as a sum of consecutive naturals, for example, 14582730 + ... + 16027489.

It is an arithmetic number, because the mean of its divisors is an integer number (1018861172700).

Almost surely, 2^{22112210001220} is an apocalyptic number.

22112210001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112210001220 is an abundant number, since it is smaller than the sum of its proper divisors (26793126288380).

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

22112210001220 is a wasteful number, since it uses less digits than its factorization.

22112210001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30612148 (or 30612146 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22112210001220 its reverse (2210001221122), we get a palindrome (24322211222342).

The spelling of 22112210001220 in words is "twenty-two trillion, one hundred twelve billion, two hundred ten million, one thousand, two hundred twenty".