10010102021221 has 8 divisors (see below), whose sum is σ = 10223908254360. Its totient is φ = 9797219357952.

The previous prime is 10010102021189. The next prime is 10010102021261. The reversal of 10010102021221 is 12212020101001.

It can be written as a sum of positive squares in 4 ways, for example, as 5718368298721 + 4291733722500 = 2391311^2 + 2071650^2 .

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 10010102021221 - 2⁵ = 10010102021189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010102021261) 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, 230870560 + ... + 230913913.

It is an arithmetic number, because the mean of its divisors is an integer number (1277988531795).

Almost surely, 2^{10010102021221} is an apocalyptic number.

It is an amenable number.

10010102021221 is a deficient number, since it is larger than the sum of its proper divisors (213806233139).

10010102021221 is an equidigital number, since it uses as much as digits as its factorization.

10010102021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461784935.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10010102021221 its reverse (12212020101001), we get a palindrome (22222122122222).

The spelling of 10010102021221 in words is "ten trillion, ten billion, one hundred two million, twenty-one thousand, two hundred twenty-one".