102021002000121 has 16 divisors (see below), whose sum is σ = 143187615003200. Its totient is φ = 64434207354048.

The previous prime is 102021002000033. The next prime is 102021002000129. The reversal of 102021002000121 is 121000200120201.

It is not a de Polignac number, because 102021002000121 - 2¹⁴ = 102021001983737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021002000097 and 102021002000106.

It is not an unprimeable number, because it can be changed into a prime (102021002000129) 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, 44163435 + ... + 46416063.

It is an arithmetic number, because the mean of its divisors is an integer number (8949225937700).

Almost surely, 2^{102021002000121} is an apocalyptic number.

It is an amenable number.

102021002000121 is a deficient number, since it is larger than the sum of its proper divisors (41166613003079).

102021002000121 is a wasteful number, since it uses less digits than its factorization.

102021002000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047208.

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

Adding to 102021002000121 its reverse (121000200120201), we get a palindrome (223021202120322).

The spelling of 102021002000121 in words is "one hundred two trillion, twenty-one billion, two million, one hundred twenty-one", and thus it is an aban number.