20211200201201 has 4 divisors (see below), whose sum is σ = 20211247994532. Its totient is φ = 20211152407872.

The previous prime is 20211200201173. The next prime is 20211200201207. The reversal of 20211200201201 is 10210200211202.

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 10586407512976 + 9624792688225 = 3253676^2 + 3102385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211200201201 is a prime.

It is a super-2 number, since 2×20211200201201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211200201207) 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, 23256620 + ... + 24110013.

It is an arithmetic number, because the mean of its divisors is an integer number (5052811998633).

Almost surely, 2^{20211200201201} is an apocalyptic number.

It is an amenable number.

20211200201201 is a deficient number, since it is larger than the sum of its proper divisors (47793331).

20211200201201 is an equidigital number, since it uses as much as digits as its factorization.

20211200201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47793330.

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

Adding to 20211200201201 its reverse (10210200211202), we get a palindrome (30421400412403).

The spelling of 20211200201201 in words is "twenty trillion, two hundred eleven billion, two hundred million, two hundred one thousand, two hundred one".