10221122220020 has 24 divisors (see below), whose sum is σ = 21477916018944. Its totient is φ = 4085866153376.

The previous prime is 10221122220017. The next prime is 10221122220041. The reversal of 10221122220020 is 2002222112201.

It is a happy number.

It is a congruent number.

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, 161388464 + ... + 161451783.

It is an arithmetic number, because the mean of its divisors is an integer number (894913167456).

Almost surely, 2^{10221122220020} is an apocalyptic number.

10221122220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221122220020 is an abundant number, since it is smaller than the sum of its proper divisors (11256793798924).

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

10221122220020 is a wasteful number, since it uses less digits than its factorization.

10221122220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322841839 (or 322841837 counting only the distinct ones).

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

Adding to 10221122220020 its reverse (2002222112201), we get a palindrome (12223344332221).

The spelling of 10221122220020 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, twenty".