22111002210220 has 96 divisors (see below), whose sum is σ = 58011483156480. Its totient is φ = 6877352951040.

The previous prime is 22111002210197. The next prime is 22111002210221. The reversal of 22111002210220 is 2201220011122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22111002210194 and 22111002210203.

It is not an unprimeable number, because it can be changed into a prime (22111002210221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14249599 + ... + 15724918.

It is an arithmetic number, because the mean of its divisors is an integer number (604286282880).

Almost surely, 2^{22111002210220} is an apocalyptic number.

22111002210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111002210220 is an abundant number, since it is smaller than the sum of its proper divisors (35900480946260).

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

22111002210220 is a wasteful number, since it uses less digits than its factorization.

22111002210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29975023 (or 29975021 counting only the distinct ones).

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

Adding to 22111002210220 its reverse (2201220011122), we get a palindrome (24312222221342).

The spelling of 22111002210220 in words is "twenty-two trillion, one hundred eleven billion, two million, two hundred ten thousand, two hundred twenty".