1332020221021 has 4 divisors (see below), whose sum is σ = 1522308824032. Its totient is φ = 1141731618012.

The previous prime is 1332020221013. The next prime is 1332020221031. The reversal of 1332020221021 is 1201220202331.

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 1332020221021 - 2³ = 1332020221013 is a prime.

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 1332020221021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332020221031) 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, 95144301495 + ... + 95144301508.

It is an arithmetic number, because the mean of its divisors is an integer number (380577206008).

Almost surely, 2^{1332020221021} is an apocalyptic number.

It is an amenable number.

1332020221021 is a deficient number, since it is larger than the sum of its proper divisors (190288603011).

1332020221021 is an equidigital number, since it uses as much as digits as its factorization.

1332020221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190288603010.

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

Adding to 1332020221021 its reverse (1201220202331), we get a palindrome (2533240423352).

It can be divided in two parts, 13320 and 20221021, that added together give a triangular number (20234341 = T₆₃₆₁).

The spelling of 1332020221021 in words is "one trillion, three hundred thirty-two billion, twenty million, two hundred twenty-one thousand, twenty-one".