103111221103221 has 16 divisors (see below), whose sum is σ = 137820478161920. Its totient is φ = 68571395665920.

The previous prime is 103111221103201. The next prime is 103111221103249. The reversal of 103111221103221 is 122301122111301.

It is not a de Polignac number, because 103111221103221 - 2¹⁸ = 103111220841077 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 (103111221103201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63670581 + ... + 65269941.

It is an arithmetic number, because the mean of its divisors is an integer number (8613779885120).

Almost surely, 2^{103111221103221} is an apocalyptic number.

It is an amenable number.

103111221103221 is a deficient number, since it is larger than the sum of its proper divisors (34709257058699).

103111221103221 is a wasteful number, since it uses less digits than its factorization.

103111221103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652316.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 103111221103221 its reverse (122301122111301), we get a palindrome (225412343214522).

The spelling of 103111221103221 in words is "one hundred three trillion, one hundred eleven billion, two hundred twenty-one million, one hundred three thousand, two hundred twenty-one".