20212120100201 has 8 divisors (see below), whose sum is σ = 20489161630920. Its totient is φ = 19935082979712.

The previous prime is 20212120100141. The next prime is 20212120100267. The reversal of 20212120100201 is 10200102121202.

It can be written as a sum of positive squares in 4 ways, for example, as 2073890890201 + 18138229210000 = 1440101^2 + 4258900^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212120100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212120102201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8722151 + ... + 10793523.

It is an arithmetic number, because the mean of its divisors is an integer number (2561145203865).

Almost surely, 2^{20212120100201} is an apocalyptic number.

It is an amenable number.

20212120100201 is a deficient number, since it is larger than the sum of its proper divisors (277041530719).

20212120100201 is a wasteful number, since it uses less digits than its factorization.

20212120100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205115.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20212120100201 its reverse (10200102121202), we get a palindrome (30412222221403).

The spelling of 20212120100201 in words is "twenty trillion, two hundred twelve billion, one hundred twenty million, one hundred thousand, two hundred one".