213221122133002 has 4 divisors (see below), whose sum is σ = 319831683199506. Its totient is φ = 106610561066500.

The previous prime is 213221122132999. The next prime is 213221122133081. The reversal of 213221122133002 is 200331221122312.

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., 197649266970841 + 15571855162161 = 14058779^2 + 3946119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53305280533249 + ... + 53305280533252.

Almost surely, 2^{213221122133002} is an apocalyptic number.

213221122133002 is a deficient number, since it is larger than the sum of its proper divisors (106610561066504).

213221122133002 is a wasteful number, since it uses less digits than its factorization.

213221122133002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106610561066503.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 213221122133002 its reverse (200331221122312), we get a palindrome (413552343255314).

The spelling of 213221122133002 in words is "two hundred thirteen trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred thirty-three thousand, two".