210201221202113 has 4 divisors (see below), whose sum is σ = 210215661088980. Its totient is φ = 210186781315248.

The previous prime is 210201221202103. The next prime is 210201221202131. The reversal of 210201221202113 is 311202122102012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61982113528384 + 148219107673729 = 7872872^2 + 12174527^2 .

It is a cyclic number.

It is not a de Polignac number, because 210201221202113 - 2⁸ = 210201221201857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210201221202103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7219921598 + ... + 7219950711.

It is an arithmetic number, because the mean of its divisors is an integer number (52553915272245).

Almost surely, 2^{210201221202113} is an apocalyptic number.

It is an amenable number.

210201221202113 is a deficient number, since it is larger than the sum of its proper divisors (14439886867).

210201221202113 is a wasteful number, since it uses less digits than its factorization.

210201221202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14439886866.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 210201221202113 its reverse (311202122102012), we get a palindrome (521403343304125).

The spelling of 210201221202113 in words is "two hundred ten trillion, two hundred one billion, two hundred twenty-one million, two hundred two thousand, one hundred thirteen".