10000221111020 has 48 divisors (see below), whose sum is σ = 24005166608640. Its totient is φ = 3427984960704.

The previous prime is 10000221111011. The next prime is 10000221111029. The reversal of 10000221111020 is 2011112200001.

It is an interprime number because it is at equal distance from previous prime (10000221111011) and next prime (10000221111029).

It is a junction number, because it is equal to n+sod(n) for n = 10000221110992 and 10000221111010.

It is not an unprimeable number, because it can be changed into a prime (10000221111029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6171074 + ... + 7621193.

It is an arithmetic number, because the mean of its divisors is an integer number (500107637680).

Almost surely, 2^{10000221111020} is an apocalyptic number.

10000221111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000221111020 is an abundant number, since it is smaller than the sum of its proper divisors (14004945497620).

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

10000221111020 is a wasteful number, since it uses less digits than its factorization.

10000221111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13797462 (or 13797460 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10000221111020 its reverse (2011112200001), we get a palindrome (12011333311021).

The spelling of 10000221111020 in words is "ten trillion, two hundred twenty-one million, one hundred eleven thousand, twenty".