22011021210 has 32 divisors (see below), whose sum is σ = 52891807680. Its totient is φ = 5862343808.

The previous prime is 22011021209. The next prime is 22011021217. The reversal of 22011021210 is 1212011022.

It is not an unprimeable number, because it can be changed into a prime (22011021217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429192 + ... + 477731.

It is an arithmetic number, because the mean of its divisors is an integer number (1652868990).

Almost surely, 2^22011021210 is an apocalyptic number.

22011021210 is an abundant number, since it is smaller than the sum of its proper divisors (30880786470).

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

22011021210 is a wasteful number, since it uses less digits than its factorization.

22011021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907742.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22011021210 its reverse (1212011022), we get a palindrome (23223032232).

The spelling of 22011021210 in words is "twenty-two billion, eleven million, twenty-one thousand, two hundred ten".