10000220011221 has 8 divisors (see below), whose sum is σ = 14545774561824. Its totient is φ = 6060739400720.

The previous prime is 10000220011213. The next prime is 10000220011237. The reversal of 10000220011221 is 12211002200001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10000220011221 - 2³ = 10000220011213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000220011197 and 10000220011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000220011261) 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, 151518484986 + ... + 151518485051.

It is an arithmetic number, because the mean of its divisors is an integer number (1818221820228).

Almost surely, 2^{10000220011221} is an apocalyptic number.

10000220011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10000220011221 is a deficient number, since it is larger than the sum of its proper divisors (4545554550603).

10000220011221 is a wasteful number, since it uses less digits than its factorization.

10000220011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303036970051.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10000220011221 its reverse (12211002200001), we get a palindrome (22211222211222).

The spelling of 10000220011221 in words is "ten trillion, two hundred twenty million, eleven thousand, two hundred twenty-one".