1223101 has 4 divisors (see below), whose sum is σ = 1334304. Its totient is φ = 1111900.

The previous prime is 1223093. The next prime is 1223119. The reversal of 1223101 is 1013221.

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: 1013221 = 11 ⋅92111.

It is a cyclic number.

It is not a de Polignac number, because 1223101 - 2³ = 1223093 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 (1223161) 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, 55585 + ... + 55606.

It is an arithmetic number, because the mean of its divisors is an integer number (333576).

2^1223101 is an apocalyptic number.

1223101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223101 is a deficient number, since it is larger than the sum of its proper divisors (111203).

1223101 is a wasteful number, since it uses less digits than its factorization.

1223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111202.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1223101 is about 1105.9389675746. The cubic root of 1223101 is about 106.9434294963.

Adding to 1223101 its reverse (1013221), we get a palindrome (2236322).

It can be divided in two parts, 122 and 3101, that added together give a palindrome (3223).

The spelling of 1223101 in words is "one million, two hundred twenty-three thousand, one hundred one".