1000210010221 has 4 divisors (see below), whose sum is σ = 1002821524992. Its totient is φ = 997598495452.

The previous prime is 1000210010171. The next prime is 1000210010249. The reversal of 1000210010221 is 1220100120001.

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 1000210010221 - 2²⁷ = 1000075792493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000210010198 and 1000210010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000210010521) 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, 1305756811 + ... + 1305757576.

It is an arithmetic number, because the mean of its divisors is an integer number (250705381248).

Almost surely, 2^{1000210010221} is an apocalyptic number.

It is an amenable number.

1000210010221 is a deficient number, since it is larger than the sum of its proper divisors (2611514771).

1000210010221 is an equidigital number, since it uses as much as digits as its factorization.

1000210010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611514770.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000210010221 its reverse (1220100120001), we get a palindrome (2220310130222).

The spelling of 1000210010221 in words is "one trillion, two hundred ten million, ten thousand, two hundred twenty-one".