101210111000221 has 4 divisors (see below), whose sum is σ = 102105775699452. Its totient is φ = 100314446300992.

The previous prime is 101210111000203. The next prime is 101210111000227. The reversal of 101210111000221 is 122000111012101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5393146959225 + 95816964040996 = 2322315^2 + 9788614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101210111000221 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 (101210111000227) 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, 447832349446 + ... + 447832349671.

It is an arithmetic number, because the mean of its divisors is an integer number (25526443924863).

Almost surely, 2^{101210111000221} is an apocalyptic number.

It is an amenable number.

101210111000221 is a deficient number, since it is larger than the sum of its proper divisors (895664699231).

101210111000221 is an equidigital number, since it uses as much as digits as its factorization.

101210111000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895664699230.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101210111000221 its reverse (122000111012101), we get a palindrome (223210222012322).

The spelling of 101210111000221 in words is "one hundred one trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.