10221100220021 has 48 divisors (see below), whose sum is σ = 11475004248000. Its totient is φ = 9077076836352.

The previous prime is 10221100220003. The next prime is 10221100220027. The reversal of 10221100220021 is 12002200112201.

10221100220021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10221100220021 - 2¹⁰ = 10221100218997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221100219978 and 10221100220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221100220027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1511322986 + ... + 1511329748.

It is an arithmetic number, because the mean of its divisors is an integer number (239062588500).

Almost surely, 2^{10221100220021} is an apocalyptic number.

It is an amenable number.

10221100220021 is a deficient number, since it is larger than the sum of its proper divisors (1253904027979).

10221100220021 is a wasteful number, since it uses less digits than its factorization.

10221100220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7878 (or 7861 counting only the distinct ones).

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

Adding to 10221100220021 its reverse (12002200112201), we get a palindrome (22223300332222).

The spelling of 10221100220021 in words is "ten trillion, two hundred twenty-one billion, one hundred million, two hundred twenty thousand, twenty-one".