10221010021221 has 8 divisors (see below), whose sum is σ = 13748615250240. Its totient is φ = 6753705736512.

The previous prime is 10221010021193. The next prime is 10221010021237. The reversal of 10221010021221 is 12212001012201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10221010021221 - 2¹¹ = 10221010019173 is a prime.

It is a super-3 number, since 3×10221010021221³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221010021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221014021221) 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, 15075235681 + ... + 15075236358.

It is an arithmetic number, because the mean of its divisors is an integer number (1718576906280).

Almost surely, 2^{10221010021221} is an apocalyptic number.

It is an amenable number.

10221010021221 is a deficient number, since it is larger than the sum of its proper divisors (3527605229019).

10221010021221 is a wasteful number, since it uses less digits than its factorization.

10221010021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30150472155.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221010021221 its reverse (12212001012201), we get a palindrome (22433011033422).

The spelling of 10221010021221 in words is "ten trillion, two hundred twenty-one billion, ten million, twenty-one thousand, two hundred twenty-one".