10021011022221 has 32 divisors (see below), whose sum is σ = 13767822598656. Its totient is φ = 6479460864000.

The previous prime is 10021011022171. The next prime is 10021011022271. The reversal of 10021011022221 is 12222011012001.

It is an interprime number because it is at equal distance from previous prime (10021011022171) and next prime (10021011022271).

It is not a de Polignac number, because 10021011022221 - 2⁹ = 10021011021709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10021011022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021011022271) 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, 14904261 + ... + 15562101.

It is an arithmetic number, because the mean of its divisors is an integer number (430244456208).

Almost surely, 2^{10021011022221} is an apocalyptic number.

It is an amenable number.

10021011022221 is a deficient number, since it is larger than the sum of its proper divisors (3746811576435).

10021011022221 is a wasteful number, since it uses less digits than its factorization.

10021011022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658613.

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

Adding to 10021011022221 its reverse (12222011012001), we get a palindrome (22243022034222).

The spelling of 10021011022221 in words is "ten trillion, twenty-one billion, eleven million, twenty-two thousand, two hundred twenty-one".