22211222200000 has 84 divisors (see below), whose sum is σ = 55090717030944. Its totient is φ = 8884488800000.

The previous prime is 22211222199883. The next prime is 22211222200019. The reversal of 22211222200000 is 222211222.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55328056 + ... + 55728055.

It is an arithmetic number, because the mean of its divisors is an integer number (655841869416).

Almost surely, 2^{22211222200000} is an apocalyptic number.

22211222200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211222200000 is an abundant number, since it is smaller than the sum of its proper divisors (32879494830944).

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

22211222200000 is an frugal number, since it uses more digits than its factorization.

22211222200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111056148 (or 111056118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22211222200000 its reverse (222211222), we get a palindrome (22211444411222).

The spelling of 22211222200000 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred thousand".