210122211221201 has 4 divisors (see below), whose sum is σ = 212162232689472. Its totient is φ = 208082189752932.

The previous prime is 210122211221113. The next prime is 210122211221233. The reversal of 210122211221201 is 102122112221012.

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 210122211221201 - 2¹⁰ = 210122211220177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210122211221401) 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, 1020010733981 + ... + 1020010734186.

It is an arithmetic number, because the mean of its divisors is an integer number (53040558172368).

Almost surely, 2^{210122211221201} is an apocalyptic number.

It is an amenable number.

210122211221201 is a deficient number, since it is larger than the sum of its proper divisors (2040021468271).

210122211221201 is a wasteful number, since it uses less digits than its factorization.

210122211221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040021468270.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 210122211221201 its reverse (102122112221012), we get a palindrome (312244323442213).

The spelling of 210122211221201 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred one".