10210221202221 has 16 divisors (see below), whose sum is σ = 15126563611200. Its totient is φ = 6806674644624.

The previous prime is 10210221202193. The next prime is 10210221202231. The reversal of 10210221202221 is 12220212201201.

It is a happy number.

10210221202221 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 221 + 202 + 221 = 666.

It is not a de Polignac number, because 10210221202221 - 2⁹ = 10210221201709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10210221202194 and 10210221202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210221202231) 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, 2524231 + ... + 5176116.

It is an arithmetic number, because the mean of its divisors is an integer number (945410225700).

Almost surely, 2^{10210221202221} is an apocalyptic number.

It is an amenable number.

10210221202221 is a deficient number, since it is larger than the sum of its proper divisors (4916342408979).

10210221202221 is an equidigital number, since it uses as much as digits as its factorization.

10210221202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749465 (or 7749459 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10210221202221 its reverse (12220212201201), we get a palindrome (22430433403422).

The spelling of 10210221202221 in words is "ten trillion, two hundred ten billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-one".