2100201000221 has 8 divisors (see below), whose sum is σ = 2103115311360. Its totient is φ = 2097287803552.

The previous prime is 2100201000169. The next prime is 2100201000223. The reversal of 2100201000221 is 1220001020012.

It is a happy number.

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-2100201000221 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 (2100201000223) 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, 3528986 + ... + 4080948.

It is an arithmetic number, because the mean of its divisors is an integer number (262889413920).

Almost surely, 2^{2100201000221} is an apocalyptic number.

It is an amenable number.

2100201000221 is a deficient number, since it is larger than the sum of its proper divisors (2914311139).

2100201000221 is an equidigital number, since it uses as much as digits as its factorization.

2100201000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557235.

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

Adding to 2100201000221 its reverse (1220001020012), we get a palindrome (3320202020233).

The spelling of 2100201000221 in words is "two trillion, one hundred billion, two hundred one million, two hundred twenty-one", and thus it is an aban number.