1001210110221 has 64 divisors (see below), whose sum is σ = 1439972352000. Its totient is φ = 616917150720.

The previous prime is 1001210110213. The next prime is 1001210110247. The reversal of 1001210110221 is 1220110121001.

It is not a de Polignac number, because 1001210110221 - 2³ = 1001210110213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001210110197 and 1001210110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001210110721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236076661 + ... + 236080901.

It is an arithmetic number, because the mean of its divisors is an integer number (22499568000).

Almost surely, 2^{1001210110221} is an apocalyptic number.

It is an amenable number.

1001210110221 is a deficient number, since it is larger than the sum of its proper divisors (438762241779).

1001210110221 is a wasteful number, since it uses less digits than its factorization.

1001210110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001210110221 its reverse (1220110121001), we get a palindrome (2221320231222).

The spelling of 1001210110221 in words is "one trillion, one billion, two hundred ten million, one hundred ten thousand, two hundred twenty-one".