210201101211001 has 4 divisors (see below), whose sum is σ = 210394478490112. Its totient is φ = 210007723931892.

The previous prime is 210201101210999. The next prime is 210201101211011. The reversal of 210201101211001 is 100112101102012.

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 not a de Polignac number, because 210201101211001 - 2¹ = 210201101210999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210201101211011) 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, 96688637925 + ... + 96688640098.

It is an arithmetic number, because the mean of its divisors is an integer number (52598619622528).

Almost surely, 2^{210201101211001} is an apocalyptic number.

It is an amenable number.

210201101211001 is a deficient number, since it is larger than the sum of its proper divisors (193377279111).

210201101211001 is a wasteful number, since it uses less digits than its factorization.

210201101211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193377279110.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210201101211001 its reverse (100112101102012), we get a palindrome (310313202313013).

The spelling of 210201101211001 in words is "two hundred ten trillion, two hundred one billion, one hundred one million, two hundred eleven thousand, one".