10202020102221 has 32 divisors (see below), whose sum is σ = 14295893977728. Its totient is φ = 6463328256000.

The previous prime is 10202020102159. The next prime is 10202020102259. The reversal of 10202020102221 is 12220102020201.

It is not a de Polignac number, because 10202020102221 - 2¹³ = 10202020094029 is a prime.

It is a super-2 number, since 2×10202020102221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10202020102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202020102291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147818721 + ... + 147887721.

It is an arithmetic number, because the mean of its divisors is an integer number (446746686804).

Almost surely, 2^{10202020102221} is an apocalyptic number.

It is an amenable number.

10202020102221 is a deficient number, since it is larger than the sum of its proper divisors (4093873875507).

10202020102221 is a wasteful number, since it uses less digits than its factorization.

10202020102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100061.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10202020102221 its reverse (12220102020201), we get a palindrome (22422122122422).

The spelling of 10202020102221 in words is "ten trillion, two hundred two billion, twenty million, one hundred two thousand, two hundred twenty-one".