210221122122201 has 32 divisors (see below), whose sum is σ = 305648701562880. Its totient is φ = 128031037948800.

The previous prime is 210221122122157. The next prime is 210221122122241. The reversal of 210221122122201 is 102221221122012.

It is not a de Polignac number, because 210221122122201 - 2⁷ = 210221122122073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210221122122241) 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, 211195005 + ... + 212188058.

It is an arithmetic number, because the mean of its divisors is an integer number (9551521923840).

Almost surely, 2^{210221122122201} is an apocalyptic number.

It is an amenable number.

210221122122201 is a deficient number, since it is larger than the sum of its proper divisors (95427579440679).

210221122122201 is a wasteful number, since it uses less digits than its factorization.

210221122122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423383397.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 210221122122201 its reverse (102221221122012), we get a palindrome (312442343244213).

The spelling of 210221122122201 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred one".