121223304445 has 8 divisors (see below), whose sum is σ = 148850941536. Its totient is φ = 94723326096.

The previous prime is 121223304407. The next prime is 121223304451. The reversal of 121223304445 is 544403322121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121223304445 - 2¹⁷ = 121223173373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281914447 + ... + 281914876.

It is an arithmetic number, because the mean of its divisors is an integer number (18606367692).

Almost surely, 2^121223304445 is an apocalyptic number.

It is an amenable number.

121223304445 is a deficient number, since it is larger than the sum of its proper divisors (27627637091).

121223304445 is an equidigital number, since it uses as much as digits as its factorization.

121223304445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563829371.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 121223304445 its reverse (544403322121), we get a palindrome (665626626566).

The spelling of 121223304445 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred four thousand, four hundred forty-five".