102001202001021 has 8 divisors (see below), whose sum is σ = 136004209419904. Its totient is φ = 67999497958080.

The previous prime is 102001202000993. The next prime is 102001202001077. The reversal of 102001202001021 is 120100202100201.

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

It is not a de Polignac number, because 102001202001021 - 2¹⁰ = 102001201999997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102001202000988 and 102001202001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001202001221) 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 7 ways as a sum of consecutive naturals, for example, 325661365 + ... + 325974426.

It is an arithmetic number, because the mean of its divisors is an integer number (17000526177488).

Almost surely, 2^{102001202001021} is an apocalyptic number.

It is an amenable number.

102001202001021 is a deficient number, since it is larger than the sum of its proper divisors (34003007418883).

102001202001021 is an equidigital number, since it uses as much as digits as its factorization.

102001202001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651687971.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102001202001021 its reverse (120100202100201), we get a palindrome (222101404101222).

The spelling of 102001202001021 in words is "one hundred two trillion, one billion, two hundred two million, one thousand, twenty-one".