102021111020201 has 16 divisors (see below), whose sum is σ = 104184238934400. Its totient is φ = 99886819507200.

The previous prime is 102021111020141. The next prime is 102021111020203. The reversal of 102021111020201 is 102020111120201.

It is a cyclic number.

It is not a de Polignac number, because 102021111020201 - 2¹⁸ = 102021110758057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102021111020203) 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 15 ways as a sum of consecutive naturals, for example, 12294200 + ... + 18846473.

It is an arithmetic number, because the mean of its divisors is an integer number (6511514933400).

Almost surely, 2^{102021111020201} is an apocalyptic number.

It is an amenable number.

102021111020201 is a deficient number, since it is larger than the sum of its proper divisors (2163127914199).

102021111020201 is a wasteful number, since it uses less digits than its factorization.

102021111020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141136.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021111020201 its reverse (102020111120201), we get a palindrome (204041222140402).

The spelling of 102021111020201 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, twenty thousand, two hundred one".