210122212101 has 16 divisors (see below), whose sum is σ = 280492122240. Its totient is φ = 139916982080.

The previous prime is 210122212039. The next prime is 210122212117. The reversal of 210122212101 is 101212221012.

It is a cyclic number.

It is not a de Polignac number, because 210122212101 - 2⁷ = 210122211973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122219101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10836451 + ... + 10855823.

It is an arithmetic number, because the mean of its divisors is an integer number (17530757640).

Almost surely, 2^210122212101 is an apocalyptic number.

It is an amenable number.

210122212101 is a deficient number, since it is larger than the sum of its proper divisors (70369910139).

210122212101 is a wasteful number, since it uses less digits than its factorization.

210122212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23436.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210122212101 its reverse (101212221012), we get a palindrome (311334433113).

The spelling of 210122212101 in words is "two hundred ten billion, one hundred twenty-two million, two hundred twelve thousand, one hundred one".