1221454041 has 4 divisors (see below), whose sum is σ = 1628605392. Its totient is φ = 814302692.

The previous prime is 1221454009. The next prime is 1221454081. The reversal of 1221454041 is 1404541221.

1221454041 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 1221454041 - 2⁵ = 1221454009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221454081) 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, 203575671 + ... + 203575676.

It is an arithmetic number, because the mean of its divisors is an integer number (407151348).

Almost surely, 2^1221454041 is an apocalyptic number.

It is an amenable number.

1221454041 is a deficient number, since it is larger than the sum of its proper divisors (407151351).

1221454041 is an equidigital number, since it uses as much as digits as its factorization.

1221454041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407151350.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1221454041 is about 34949.3067313216. The cubic root of 1221454041 is about 1068.9540659956.

Adding to 1221454041 its reverse (1404541221), we get a palindrome (2625995262).

The spelling of 1221454041 in words is "one billion, two hundred twenty-one million, four hundred fifty-four thousand, forty-one".