1223300221021 has 8 divisors (see below), whose sum is σ = 1295886258080. Its totient is φ = 1151534365488.

The previous prime is 1223300221001. The next prime is 1223300221081. The reversal of 1223300221021 is 1201220033221.

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 1223300221021 - 2⁷ = 1223300220893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223300221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223300221001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205042311 + ... + 205048276.

It is an arithmetic number, because the mean of its divisors is an integer number (161985782260).

Almost surely, 2^{1223300221021} is an apocalyptic number.

It is an amenable number.

1223300221021 is a deficient number, since it is larger than the sum of its proper divisors (72586037059).

1223300221021 is a wasteful number, since it uses less digits than its factorization.

1223300221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410090763.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1223300221021 its reverse (1201220033221), we get a palindrome (2424520254242).

The spelling of 1223300221021 in words is "one trillion, two hundred twenty-three billion, three hundred million, two hundred twenty-one thousand, twenty-one".