22220021021210 has 64 divisors (see below), whose sum is σ = 42518843896320. Its totient is φ = 8336826731520.

The previous prime is 22220021021161. The next prime is 22220021021227. The reversal of 22220021021210 is 1212012002222.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19653359 + ... + 20753181.

It is an arithmetic number, because the mean of its divisors is an integer number (664356935880).

Almost surely, 2^{22220021021210} is an apocalyptic number.

22220021021210 is a deficient number, since it is larger than the sum of its proper divisors (20298822875110).

22220021021210 is a wasteful number, since it uses less digits than its factorization.

22220021021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100903.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22220021021210 its reverse (1212012002222), we get a palindrome (23432033023432).

The spelling of 22220021021210 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, twenty-one thousand, two hundred ten".