22112211000020 has 48 divisors (see below), whose sum is σ = 46680397037568. Its totient is φ = 8798267850240.

The previous prime is 22112211000017. The next prime is 22112211000029. The reversal of 22112211000020 is 2000011221122.

It is a junction number, because it is equal to n+sod(n) for n = 22112210999959 and 22112211000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112211000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131197724 + ... + 131366156.

It is an arithmetic number, because the mean of its divisors is an integer number (972508271616).

Almost surely, 2^{22112211000020} is an apocalyptic number.

22112211000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112211000020 is an abundant number, since it is smaller than the sum of its proper divisors (24568186037548).

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

22112211000020 is a wasteful number, since it uses less digits than its factorization.

22112211000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203000 (or 202998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112211000020 its reverse (2000011221122), we get a palindrome (24112222221142).

The spelling of 22112211000020 in words is "twenty-two trillion, one hundred twelve billion, two hundred eleven million, twenty", and thus it is an aban number.