101012111000221 has 4 divisors (see below), whose sum is σ = 101013345964000. Its totient is φ = 101010876036444.

The previous prime is 101012111000201. The next prime is 101012111000233. The reversal of 101012111000221 is 122000111210101.

It is a happy number.

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 101012111000221 - 2²⁵ = 101012077445789 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 (101012111000201) 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, 617359191 + ... + 617522788.

It is an arithmetic number, because the mean of its divisors is an integer number (25253336491000).

Almost surely, 2^{101012111000221} is an apocalyptic number.

It is an amenable number.

101012111000221 is a deficient number, since it is larger than the sum of its proper divisors (1234963779).

101012111000221 is an equidigital number, since it uses as much as digits as its factorization.

101012111000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234963778.

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

Adding to 101012111000221 its reverse (122000111210101), we get a palindrome (223012222210322).

The spelling of 101012111000221 in words is "one hundred one trillion, twelve billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.