210122021122201 has 4 divisors (see below), whose sum is σ = 210479980272912. Its totient is φ = 209764061971492.

The previous prime is 210122021122177. The next prime is 210122021122229. The reversal of 210122021122201 is 102221120221012.

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 210122021122201 - 2²⁷ = 210121886904473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210122021122271) 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, 178979574475 + ... + 178979575648.

It is an arithmetic number, because the mean of its divisors is an integer number (52619995068228).

Almost surely, 2^{210122021122201} is an apocalyptic number.

It is an amenable number.

210122021122201 is a deficient number, since it is larger than the sum of its proper divisors (357959150711).

210122021122201 is an equidigital number, since it uses as much as digits as its factorization.

210122021122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357959150710.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210122021122201 its reverse (102221120221012), we get a palindrome (312343141343213).

The spelling of 210122021122201 in words is "two hundred ten trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, two hundred one".