22101021210220 has 24 divisors (see below), whose sum is σ = 46412233507584. Its totient is φ = 8840391538176.

The previous prime is 22101021210193. The next prime is 22101021210241. The reversal of 22101021210220 is 2201212010122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22101021210194 and 22101021210203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18004917 + ... + 19193203.

It is an arithmetic number, because the mean of its divisors is an integer number (1933843062816).

Almost surely, 2^{22101021210220} is an apocalyptic number.

22101021210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101021210220 is an abundant number, since it is smaller than the sum of its proper divisors (24311212297364).

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

22101021210220 is a wasteful number, since it uses less digits than its factorization.

22101021210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118249 (or 2118247 counting only the distinct ones).

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

Adding to 22101021210220 its reverse (2201212010122), we get a palindrome (24302233220342).

The spelling of 22101021210220 in words is "twenty-two trillion, one hundred one billion, twenty-one million, two hundred ten thousand, two hundred twenty".