21320333210122 has 4 divisors (see below), whose sum is σ = 31980499815186. Its totient is φ = 10660166605060.

The previous prime is 21320333210083. The next prime is 21320333210149. The reversal of 21320333210122 is 22101233302312.

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., 18357462962721 + 2962870247401 = 4284561^2 + 1721299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330083302529 + ... + 5330083302532.

Almost surely, 2^{21320333210122} is an apocalyptic number.

21320333210122 is a deficient number, since it is larger than the sum of its proper divisors (10660166605064).

21320333210122 is a wasteful number, since it uses less digits than its factorization.

21320333210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660166605063.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21320333210122 its reverse (22101233302312), we get a palindrome (43421566512434).

The spelling of 21320333210122 in words is "twenty-one trillion, three hundred twenty billion, three hundred thirty-three million, two hundred ten thousand, one hundred twenty-two".