210021200001322 has 4 divisors (see below), whose sum is σ = 315031800001986. Its totient is φ = 105010600000660.

The previous prime is 210021200001289. The next prime is 210021200001383. The reversal of 210021200001322 is 223100002120012.

It is a happy number.

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., 105574823551521 + 104446376449801 = 10274961^2 + 10219901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210021200001296 and 210021200001305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52505300000329 + ... + 52505300000332.

Almost surely, 2^{210021200001322} is an apocalyptic number.

210021200001322 is a deficient number, since it is larger than the sum of its proper divisors (105010600000664).

210021200001322 is a wasteful number, since it uses less digits than its factorization.

210021200001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105010600000663.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210021200001322 its reverse (223100002120012), we get a palindrome (433121202121334).

The spelling of 210021200001322 in words is "two hundred ten trillion, twenty-one billion, two hundred million, one thousand, three hundred twenty-two".