1233322020421 has 4 divisors (see below), whose sum is σ = 1233749221792. Its totient is φ = 1232894819052.

The previous prime is 1233322020373. The next prime is 1233322020439. The reversal of 1233322020421 is 1240202233321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1233322020421 - 2¹³ = 1233322012229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233322020521) 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, 213596355 + ... + 213602128.

It is an arithmetic number, because the mean of its divisors is an integer number (308437305448).

Almost surely, 2^{1233322020421} is an apocalyptic number.

It is an amenable number.

1233322020421 is a deficient number, since it is larger than the sum of its proper divisors (427201371).

1233322020421 is an equidigital number, since it uses as much as digits as its factorization.

1233322020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427201370.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1233322020421 its reverse (1240202233321), we get a palindrome (2473524253742).

The spelling of 1233322020421 in words is "one trillion, two hundred thirty-three billion, three hundred twenty-two million, twenty thousand, four hundred twenty-one".