10202100222221 has 8 divisors (see below), whose sum is σ = 10375268366400. Its totient is φ = 10028940451200.

The previous prime is 10202100222203. The next prime is 10202100222227. The reversal of 10202100222221 is 12222200120201.

It is a happy number.

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 10202100222221 - 2¹⁸ = 10202099960077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10202100222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202100222227) 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, 389021 + ... + 4533821.

It is an arithmetic number, because the mean of its divisors is an integer number (1296908545800).

Almost surely, 2^{10202100222221} is an apocalyptic number.

It is an amenable number.

10202100222221 is a deficient number, since it is larger than the sum of its proper divisors (173168144179).

10202100222221 is an equidigital number, since it uses as much as digits as its factorization.

10202100222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186579.

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

Adding to 10202100222221 its reverse (12222200120201), we get a palindrome (22424300342422).

The spelling of 10202100222221 in words is "ten trillion, two hundred two billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-one".