210201100022221 has 32 divisors (see below), whose sum is σ = 264886625710080. Its totient is φ = 162034721448000.

The previous prime is 210201100022213. The next prime is 210201100022261. The reversal of 210201100022221 is 122220001102012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210201100022221 - 2³ = 210201100022213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210201100022195 and 210201100022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201100022261) 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, 2153941 + ... + 20616538.

It is an arithmetic number, because the mean of its divisors is an integer number (8277707053440).

Almost surely, 2^{210201100022221} is an apocalyptic number.

It is an amenable number.

210201100022221 is a deficient number, since it is larger than the sum of its proper divisors (54685525687859).

210201100022221 is a wasteful number, since it uses less digits than its factorization.

210201100022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22771785.

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

Adding to 210201100022221 its reverse (122220001102012), we get a palindrome (332421101124233).

The spelling of 210201100022221 in words is "two hundred ten trillion, two hundred one billion, one hundred million, twenty-two thousand, two hundred twenty-one".