101012210010221 has 4 divisors (see below), whose sum is σ = 101012230833600. Its totient is φ = 101012189186844.

The previous prime is 101012210010203. The next prime is 101012210010301. The reversal of 101012210010221 is 122010012210101.

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 101012210010221 - 2⁶ = 101012210010157 is a prime.

It is a super-2 number, since 2×101012210010221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101012210010196 and 101012210010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012210010121) 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, 1127870 + ... + 14258208.

It is an arithmetic number, because the mean of its divisors is an integer number (25253057708400).

Almost surely, 2^{101012210010221} is an apocalyptic number.

It is an amenable number.

101012210010221 is a deficient number, since it is larger than the sum of its proper divisors (20823379).

101012210010221 is an equidigital number, since it uses as much as digits as its factorization.

101012210010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20823378.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101012210010221 its reverse (122010012210101), we get a palindrome (223022222220322).

The spelling of 101012210010221 in words is "one hundred one trillion, twelve billion, two hundred ten million, ten thousand, two hundred twenty-one".