10220222100221 has 6 divisors (see below), whose sum is σ = 11888829790110. Its totient is φ = 8760190371576.

The previous prime is 10220222100167. The next prime is 10220222100223. The reversal of 10220222100221 is 12200122202201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9236675856100 + 983546244121 = 3039190^2 + 991739^2 .

It is not a de Polignac number, because 10220222100221 - 2⁶ = 10220222100157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10220222100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220222100223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104287980566 + ... + 104287980663.

It is an arithmetic number, because the mean of its divisors is an integer number (1981471631685).

Almost surely, 2^{10220222100221} is an apocalyptic number.

It is an amenable number.

10220222100221 is a deficient number, since it is larger than the sum of its proper divisors (1668607689889).

10220222100221 is an equidigital number, since it uses as much as digits as its factorization.

10220222100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208575961243 (or 208575961236 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10220222100221 its reverse (12200122202201), we get a palindrome (22420344302422).

The spelling of 10220222100221 in words is "ten trillion, two hundred twenty billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".