2000102001221 has 4 divisors (see below), whose sum is σ = 2034002035200. Its totient is φ = 1966201967244.

The previous prime is 2000102001197. The next prime is 2000102001241. The reversal of 2000102001221 is 1221002010002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2000102001221 - 2³⁸ = 1725224094277 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 (2000102001241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16950016901 + ... + 16950017018.

It is an arithmetic number, because the mean of its divisors is an integer number (508500508800).

Almost surely, 2^{2000102001221} is an apocalyptic number.

It is an amenable number.

2000102001221 is a deficient number, since it is larger than the sum of its proper divisors (33900033979).

2000102001221 is an equidigital number, since it uses as much as digits as its factorization.

2000102001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33900033978.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2000102001221 its reverse (1221002010002), we get a palindrome (3221104011223).

The spelling of 2000102001221 in words is "two trillion, one hundred two million, one thousand, two hundred twenty-one".