20201212100201 has 4 divisors (see below), whose sum is σ = 22037685927504. Its totient is φ = 18364738272900.

The previous prime is 20201212100077. The next prime is 20201212100273. The reversal of 20201212100201 is 10200121210202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20201212100201 - 2¹⁰ = 20201212099177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201212100801) 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, 918236913635 + ... + 918236913656.

It is an arithmetic number, because the mean of its divisors is an integer number (5509421481876).

Almost surely, 2^{20201212100201} is an apocalyptic number.

It is an amenable number.

20201212100201 is a deficient number, since it is larger than the sum of its proper divisors (1836473827303).

20201212100201 is a wasteful number, since it uses less digits than its factorization.

20201212100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836473827302.

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

Adding to 20201212100201 its reverse (10200121210202), we get a palindrome (30401333310403).

The spelling of 20201212100201 in words is "twenty trillion, two hundred one billion, two hundred twelve million, one hundred thousand, two hundred one".