1000210120221 has 16 divisors (see below), whose sum is σ = 1437187665536. Its totient is φ = 615090269376.

The previous prime is 1000210120211. The next prime is 1000210120223. The reversal of 1000210120221 is 1220210120001.

It is not a de Polignac number, because 1000210120221 - 2¹⁰ = 1000210119197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000210120197 and 1000210120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000210120223) 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, 8768665 + ... + 8881998.

It is an arithmetic number, because the mean of its divisors is an integer number (89824229096).

Almost surely, 2^{1000210120221} is an apocalyptic number.

It is an amenable number.

1000210120221 is a deficient number, since it is larger than the sum of its proper divisors (436977545315).

1000210120221 is a wasteful number, since it uses less digits than its factorization.

1000210120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17652132.

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

Adding to 1000210120221 its reverse (1220210120001), we get a palindrome (2220420240222).

The spelling of 1000210120221 in words is "one trillion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".