102102021001 has 16 divisors (see below), whose sum is σ = 108494020800. Its totient is φ = 95812372800.

The previous prime is 102102020981. The next prime is 102102021013. The reversal of 102102021001 is 100120201201.

It is a cyclic number.

It is not a de Polignac number, because 102102021001 - 2¹⁹ = 102101496713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102024001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10890846 + ... + 10900216.

It is an arithmetic number, because the mean of its divisors is an integer number (6780876300).

Almost surely, 2^102102021001 is an apocalyptic number.

It is an amenable number.

102102021001 is a deficient number, since it is larger than the sum of its proper divisors (6391999799).

102102021001 is a wasteful number, since it uses less digits than its factorization.

102102021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102102021001 its reverse (100120201201), we get a palindrome (202222222202).

The spelling of 102102021001 in words is "one hundred two billion, one hundred two million, twenty-one thousand, one".