2121020010201 has 8 divisors (see below), whose sum is σ = 2994381190944. Its totient is φ = 1330836084800.

The previous prime is 2121020010173. The next prime is 2121020010203. The reversal of 2121020010201 is 1020100201212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121020010201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121020010203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20794313775 + ... + 20794313876.

It is an arithmetic number, because the mean of its divisors is an integer number (374297648868).

Almost surely, 2^{2121020010201} is an apocalyptic number.

It is an amenable number.

2121020010201 is a deficient number, since it is larger than the sum of its proper divisors (873361180743).

2121020010201 is a wasteful number, since it uses less digits than its factorization.

2121020010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41588627671.

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

Adding to 2121020010201 its reverse (1020100201212), we get a palindrome (3141120211413).

The spelling of 2121020010201 in words is "two trillion, one hundred twenty-one billion, twenty million, ten thousand, two hundred one".