10022221121020 has 12 divisors (see below), whose sum is σ = 21046664354184. Its totient is φ = 4008888448400.

The previous prime is 10022221120991. The next prime is 10022221121023. The reversal of 10022221121020 is 2012112222001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10022221120985 and 10022221121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022221121023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250555528006 + ... + 250555528045.

It is an arithmetic number, because the mean of its divisors is an integer number (1753888696182).

Almost surely, 2^{10022221121020} is an apocalyptic number.

10022221121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10022221121020 is an abundant number, since it is smaller than the sum of its proper divisors (11024443233164).

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

10022221121020 is a wasteful number, since it uses less digits than its factorization.

10022221121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501111056060 (or 501111056058 counting only the distinct ones).

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

Adding to 10022221121020 its reverse (2012112222001), we get a palindrome (12034333343021).

The spelling of 10022221121020 in words is "ten trillion, twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, twenty".