21133310230202 has 4 divisors (see below), whose sum is σ = 31699965345306. Its totient is φ = 10566655115100.

The previous prime is 21133310230187. The next prime is 21133310230211. The reversal of 21133310230202 is 20203201333112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13545263191321 + 7588047038881 = 3680389^2 + 2754641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283327557549 + ... + 5283327557552.

Almost surely, 2^{21133310230202} is an apocalyptic number.

21133310230202 is a deficient number, since it is larger than the sum of its proper divisors (10566655115104).

21133310230202 is a wasteful number, since it uses less digits than its factorization.

21133310230202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10566655115103.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21133310230202 its reverse (20203201333112), we get a palindrome (41336511563314).

The spelling of 21133310230202 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred ten million, two hundred thirty thousand, two hundred two".