13212003203021 has 12 divisors (see below), whose sum is σ = 15402259501632. Its totient is φ = 11300115031128.

The previous prime is 13212003202997. The next prime is 13212003203071. The reversal of 13212003203021 is 12030230021231.

It is not a de Polignac number, because 13212003203021 - 2¹⁴ = 13212003186637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13212003202984 and 13212003203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212003203071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291157355 + ... + 291202728.

It is an arithmetic number, because the mean of its divisors is an integer number (1283521625136).

Almost surely, 2^{13212003203021} is an apocalyptic number.

It is an amenable number.

13212003203021 is a deficient number, since it is larger than the sum of its proper divisors (2190256298611).

13212003203021 is an equidigital number, since it uses as much as digits as its factorization.

13212003203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582360560 (or 582360553 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13212003203021 its reverse (12030230021231), we get a palindrome (25242233224252).

The spelling of 13212003203021 in words is "thirteen trillion, two hundred twelve billion, three million, two hundred three thousand, twenty-one".