103110001221 has 4 divisors (see below), whose sum is σ = 137480001632. Its totient is φ = 68740000812.

The previous prime is 103110001217. The next prime is 103110001271. The reversal of 103110001221 is 122100011301.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122100011301 = 3 ⋅40700003767.

It is not a de Polignac number, because 103110001221 - 2² = 103110001217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103110001197 and 103110001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103110001271) 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, 17185000201 + ... + 17185000206.

It is an arithmetic number, because the mean of its divisors is an integer number (34370000408).

Almost surely, 2^103110001221 is an apocalyptic number.

It is an amenable number.

103110001221 is a deficient number, since it is larger than the sum of its proper divisors (34370000411).

103110001221 is an equidigital number, since it uses as much as digits as its factorization.

103110001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34370000410.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 103110001221 its reverse (122100011301), we get a palindrome (225210012522).

The spelling of 103110001221 in words is "one hundred three billion, one hundred ten million, one thousand, two hundred twenty-one".