201001220201 has 4 divisors (see below), whose sum is σ = 209740403712. Its totient is φ = 192262036692.

The previous prime is 201001220159. The next prime is 201001220221. The reversal of 201001220201 is 102022100102.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-201001220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201001220221) 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, 4369591721 + ... + 4369591766.

It is an arithmetic number, because the mean of its divisors is an integer number (52435100928).

Almost surely, 2^201001220201 is an apocalyptic number.

It is an amenable number.

201001220201 is a deficient number, since it is larger than the sum of its proper divisors (8739183511).

201001220201 is an equidigital number, since it uses as much as digits as its factorization.

201001220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739183510.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201001220201 its reverse (102022100102), we get a palindrome (303023320303).

The spelling of 201001220201 in words is "two hundred one billion, one million, two hundred twenty thousand, two hundred one".