4400121213223 has 4 divisors (see below), whose sum is σ = 4472254347928. Its totient is φ = 4327988078520.

The previous prime is 4400121213197. The next prime is 4400121213269. The reversal of 4400121213223 is 3223121210044.

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 4400121213223 - 2¹⁷ = 4400121082151 is a prime.

It is a super-2 number, since 2×4400121213223² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400121213023) 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, 36066567261 + ... + 36066567382.

It is an arithmetic number, because the mean of its divisors is an integer number (1118063586982).

Almost surely, 2^{4400121213223} is an apocalyptic number.

4400121213223 is a deficient number, since it is larger than the sum of its proper divisors (72133134705).

4400121213223 is an equidigital number, since it uses as much as digits as its factorization.

4400121213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72133134704.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4400121213223 its reverse (3223121210044), we get a palindrome (7623242423267).

The spelling of 4400121213223 in words is "four trillion, four hundred billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-three".