1320221420033 has 16 divisors (see below), whose sum is σ = 1364201848320. Its totient is φ = 1276328793600.

The previous prime is 1320221419987. The next prime is 1320221420047. The reversal of 1320221420033 is 3300241220231.

It is a cyclic number.

It is not a de Polignac number, because 1320221420033 - 2¹⁴ = 1320221403649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320221419990 and 1320221420008.

It is not an unprimeable number, because it can be changed into a prime (1320221420083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168370193 + ... + 168378033.

It is an arithmetic number, because the mean of its divisors is an integer number (85262615520).

Almost surely, 2^{1320221420033} is an apocalyptic number.

It is an amenable number.

1320221420033 is a deficient number, since it is larger than the sum of its proper divisors (43980428287).

1320221420033 is a wasteful number, since it uses less digits than its factorization.

1320221420033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12728.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1320221420033 its reverse (3300241220231), we get a palindrome (4620462640264).

The spelling of 1320221420033 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, four hundred twenty thousand, thirty-three".