210122001220201 has 32 divisors (see below), whose sum is σ = 253615670784000. Its totient is φ = 170187371876544.

The previous prime is 210122001220169. The next prime is 210122001220211. The reversal of 210122001220201 is 102022100221012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210122001220201 - 2⁵ = 210122001220169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210122001220211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209954676 + ... + 210953098.

It is an arithmetic number, because the mean of its divisors is an integer number (7925489712000).

Almost surely, 2^{210122001220201} is an apocalyptic number.

It is an amenable number.

210122001220201 is a deficient number, since it is larger than the sum of its proper divisors (43493669563799).

210122001220201 is a wasteful number, since it uses less digits than its factorization.

210122001220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014285.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210122001220201 its reverse (102022100221012), we get a palindrome (312144101441213).

The spelling of 210122001220201 in words is "two hundred ten trillion, one hundred twenty-two billion, one million, two hundred twenty thousand, two hundred one".