22211111002220 has 24 divisors (see below), whose sum is σ = 53306666405664. Its totient is φ = 7615238057856.

The previous prime is 22211111002189. The next prime is 22211111002229. The reversal of 22211111002220 is 2220011111222.

It is not an unprimeable number, because it can be changed into a prime (22211111002229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79325396297 + ... + 79325396576.

It is an arithmetic number, because the mean of its divisors is an integer number (2221111100236).

Almost surely, 2^{22211111002220} is an apocalyptic number.

22211111002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211111002220 is an abundant number, since it is smaller than the sum of its proper divisors (31095555403444).

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

22211111002220 is a wasteful number, since it uses less digits than its factorization.

22211111002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158650792889 (or 158650792887 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22211111002220 its reverse (2220011111222), we get a palindrome (24431122113442).

It can be divided in two parts, 22211111002 and 220, that added together give a palindrome (22211111222).

The spelling of 22211111002220 in words is "twenty-two trillion, two hundred eleven billion, one hundred eleven million, two thousand, two hundred twenty".