213021101030201 has 4 divisors (see below), whose sum is σ = 213027275410404. Its totient is φ = 213014926650000.

The previous prime is 213021101030191. The next prime is 213021101030273. The reversal of 213021101030201 is 102030101120312.

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 73331134489600 + 139689966540601 = 8563360^2 + 11819051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213021101030201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213021101030201.

It is not an unprimeable number, because it can be changed into a prime (213021101030401) 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, 3087138350 + ... + 3087207351.

It is an arithmetic number, because the mean of its divisors is an integer number (53256818852601).

Almost surely, 2^{213021101030201} is an apocalyptic number.

It is an amenable number.

213021101030201 is a deficient number, since it is larger than the sum of its proper divisors (6174380203).

213021101030201 is an equidigital number, since it uses as much as digits as its factorization.

213021101030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174380202.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 213021101030201 its reverse (102030101120312), we get a palindrome (315051202150513).

The spelling of 213021101030201 in words is "two hundred thirteen trillion, twenty-one billion, one hundred one million, thirty thousand, two hundred one".