210212122001 has 4 divisors (see below), whose sum is σ = 240242425152. Its totient is φ = 180181818852.

The previous prime is 210212121923. The next prime is 210212122013. The reversal of 210212122001 is 100221212012.

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 210212122001 - 2²² = 210207927697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210212127001) 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, 15015151565 + ... + 15015151578.

It is an arithmetic number, because the mean of its divisors is an integer number (60060606288).

Almost surely, 2^210212122001 is an apocalyptic number.

It is an amenable number.

210212122001 is a deficient number, since it is larger than the sum of its proper divisors (30030303151).

210212122001 is an equidigital number, since it uses as much as digits as its factorization.

210212122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30030303150.

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

Adding to 210212122001 its reverse (100221212012), we get a palindrome (310433334013).

The spelling of 210212122001 in words is "two hundred ten billion, two hundred twelve million, one hundred twenty-two thousand, one".