102221300021021 has 32 divisors (see below), whose sum is σ = 110090032588800. Its totient is φ = 94608992701440.

The previous prime is 102221300020991. The next prime is 102221300021023. The reversal of 102221300021021 is 120120003122201.

It is a de Polignac number, because none of the positive numbers 2^k-102221300021021 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 (102221300021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2143834301 + ... + 2143881981.

It is an arithmetic number, because the mean of its divisors is an integer number (3440313518400).

Almost surely, 2^{102221300021021} is an apocalyptic number.

It is an amenable number.

102221300021021 is a deficient number, since it is larger than the sum of its proper divisors (7868732567779).

102221300021021 is a wasteful number, since it uses less digits than its factorization.

102221300021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52049.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102221300021021 its reverse (120120003122201), we get a palindrome (222341303143222).

The spelling of 102221300021021 in words is "one hundred two trillion, two hundred twenty-one billion, three hundred million, twenty-one thousand, twenty-one".