1202132002021 has 8 divisors (see below), whose sum is σ = 1202803219800. Its totient is φ = 1201460958720.

The previous prime is 1202132001893. The next prime is 1202132002037. The reversal of 1202132002021 is 1202002312021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 743923500100 + 458208501921 = 862510^2 + 676911^2 .

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 1202132002021 - 2⁷ = 1202132001893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202132001986 and 1202132002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202132002091) 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, 15191085 + ... + 15270013.

It is an arithmetic number, because the mean of its divisors is an integer number (150350402475).

Almost surely, 2^{1202132002021} is an apocalyptic number.

It is an amenable number.

1202132002021 is a deficient number, since it is larger than the sum of its proper divisors (671217779).

1202132002021 is an equidigital number, since it uses as much as digits as its factorization.

1202132002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87239.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1202132002021 its reverse (1202002312021), we get a palindrome (2404134314042).

The spelling of 1202132002021 in words is "one trillion, two hundred two billion, one hundred thirty-two million, two thousand, twenty-one".