22210201220 has 12 divisors (see below), whose sum is σ = 46641422604. Its totient is φ = 8884080480.

The previous prime is 22210201217. The next prime is 22210201241. The reversal of 22210201220 is 2210201222.

It can be written as a sum of positive squares in 2 ways, for example, as 15088191556 + 7122009664 = 122834^2 + 84392^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22210201195 and 22210201204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555255011 + ... + 555255050.

It is an arithmetic number, because the mean of its divisors is an integer number (3886785217).

Almost surely, 2^22210201220 is an apocalyptic number.

22210201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22210201220 is an abundant number, since it is smaller than the sum of its proper divisors (24431221384).

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

22210201220 is a wasteful number, since it uses less digits than its factorization.

22210201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110510070 (or 1110510068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22210201220 its reverse (2210201222), we get a palindrome (24420402442).

The spelling of 22210201220 in words is "twenty-two billion, two hundred ten million, two hundred one thousand, two hundred twenty".