1452220111 has 4 divisors (see below), whose sum is σ = 1454322424. Its totient is φ = 1450117800.

The previous prime is 1452220097. The next prime is 1452220127. The reversal of 1452220111 is 1110222541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1452220111 - 2¹⁷ = 1452089039 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 (1452220181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050120 + ... + 1051501.

It is an arithmetic number, because the mean of its divisors is an integer number (363580606).

Almost surely, 2^1452220111 is an apocalyptic number.

1452220111 is a deficient number, since it is larger than the sum of its proper divisors (2102313).

1452220111 is an equidigital number, since it uses as much as digits as its factorization.

1452220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102312.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1452220111 is about 38108.0058649098. The cubic root of 1452220111 is about 1132.4285646764.

Adding to 1452220111 its reverse (1110222541), we get a palindrome (2562442652).

The spelling of 1452220111 in words is "one billion, four hundred fifty-two million, two hundred twenty thousand, one hundred eleven".