210201001211001 has 4 divisors (see below), whose sum is σ = 280268001614672. Its totient is φ = 140134000807332.

The previous prime is 210201001210883. The next prime is 210201001211017. The reversal of 210201001211001 is 100112100102012.

210201001211001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 210201001211001 - 2¹¹ = 210201001208953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210201001211021) 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, 35033500201831 + ... + 35033500201836.

It is an arithmetic number, because the mean of its divisors is an integer number (70067000403668).

Almost surely, 2^{210201001211001} is an apocalyptic number.

It is an amenable number.

210201001211001 is a deficient number, since it is larger than the sum of its proper divisors (70067000403671).

210201001211001 is an equidigital number, since it uses as much as digits as its factorization.

210201001211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70067000403670.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210201001211001 its reverse (100112100102012), we get a palindrome (310313101313013).

The spelling of 210201001211001 in words is "two hundred ten trillion, two hundred one billion, one million, two hundred eleven thousand, one".