21303032212002 has 16 divisors (see below), whose sum is σ = 42616902951072. Its totient is φ = 7099204316160.

The previous prime is 21303032211997. The next prime is 21303032212003. The reversal of 21303032212002 is 20021223030312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21303032212002.

It is not an unprimeable number, because it can be changed into a prime (21303032212003) 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, 451579743 + ... + 451626914.

It is an arithmetic number, because the mean of its divisors is an integer number (2663556434442).

Almost surely, 2^{21303032212002} is an apocalyptic number.

21303032212002 is an abundant number, since it is smaller than the sum of its proper divisors (21313870739070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303032212002 is a wasteful number, since it uses less digits than its factorization.

21303032212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903210593.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21303032212002 its reverse (20021223030312), we get a palindrome (41324255242314).

The spelling of 21303032212002 in words is "twenty-one trillion, three hundred three billion, thirty-two million, two hundred twelve thousand, two".