101023112010221 has 4 divisors (see below), whose sum is σ = 101023133365632. Its totient is φ = 101023090654812.

The previous prime is 101023112010199. The next prime is 101023112010241. The reversal of 101023112010221 is 122010211320101.

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 a de Polignac number, because none of the positive numbers 2^k-101023112010221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101023112010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101023112010241) 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, 67451 + ... + 14214456.

It is an arithmetic number, because the mean of its divisors is an integer number (25255783341408).

Almost surely, 2^{101023112010221} is an apocalyptic number.

It is an amenable number.

101023112010221 is a deficient number, since it is larger than the sum of its proper divisors (21355411).

101023112010221 is an equidigital number, since it uses as much as digits as its factorization.

101023112010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355410.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101023112010221 its reverse (122010211320101), we get a palindrome (223033323330322).

The spelling of 101023112010221 in words is "one hundred one trillion, twenty-three billion, one hundred twelve million, ten thousand, two hundred twenty-one".