1220554241223 has 4 divisors (see below), whose sum is σ = 1627405654968. Its totient is φ = 813702827480.

The previous prime is 1220554241197. The next prime is 1220554241251. The reversal of 1220554241223 is 3221424550221.

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 1220554241223 - 2²⁴ = 1220537464007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220554241293) 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, 203425706868 + ... + 203425706873.

It is an arithmetic number, because the mean of its divisors is an integer number (406851413742).

Almost surely, 2^{1220554241223} is an apocalyptic number.

1220554241223 is a deficient number, since it is larger than the sum of its proper divisors (406851413745).

1220554241223 is an equidigital number, since it uses as much as digits as its factorization.

1220554241223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406851413744.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 1220554241223 its reverse (3221424550221), we get a palindrome (4441978791444).

The spelling of 1220554241223 in words is "one trillion, two hundred twenty billion, five hundred fifty-four million, two hundred forty-one thousand, two hundred twenty-three".