10002211221020 has 24 divisors (see below), whose sum is σ = 21917888937504. Its totient is φ = 3826932988736.

The previous prime is 10002211221019. The next prime is 10002211221029. The reversal of 10002211221020 is 2012211220001.

It is a junction number, because it is equal to n+sod(n) for n = 10002211220986 and 10002211221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002211221029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10871968259 + ... + 10871969178.

It is an arithmetic number, because the mean of its divisors is an integer number (913245372396).

Almost surely, 2^{10002211221020} is an apocalyptic number.

10002211221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002211221020 is an abundant number, since it is smaller than the sum of its proper divisors (11915677716484).

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

10002211221020 is a wasteful number, since it uses less digits than its factorization.

10002211221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21743937469 (or 21743937467 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10002211221020 its reverse (2012211220001), we get a palindrome (12014422441021).

The spelling of 10002211221020 in words is "ten trillion, two billion, two hundred eleven million, two hundred twenty-one thousand, twenty".