1332120021021 has 24 divisors (see below), whose sum is σ = 1944399280824. Its totient is φ = 878748641280.

The previous prime is 1332120020999. The next prime is 1332120021049. The reversal of 1332120021021 is 1201200212331.

1332120021021 is a `hidden beast` number, since 1 + 332 + 120 + 0 + 210 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66157498521 + 1265962522500 = 257211^2 + 1125150^2 .

It is not a de Polignac number, because 1332120021021 - 2⁵ = 1332120020989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1332120020985 and 1332120021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332120025021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4285555 + ... + 4585871.

It is an arithmetic number, because the mean of its divisors is an integer number (81016636701).

Almost surely, 2^{1332120021021} is an apocalyptic number.

It is an amenable number.

1332120021021 is a deficient number, since it is larger than the sum of its proper divisors (612279259803).

1332120021021 is a wasteful number, since it uses less digits than its factorization.

1332120021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305501 (or 305498 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1332120021021 its reverse (1201200212331), we get a palindrome (2533320233352).

The spelling of 1332120021021 in words is "one trillion, three hundred thirty-two billion, one hundred twenty million, twenty-one thousand, twenty-one".