210122102110021 has 8 divisors (see below), whose sum is σ = 212836543063200. Its totient is φ = 207412014713232.

The previous prime is 210122102110001. The next prime is 210122102110079. The reversal of 210122102110021 is 120011201221012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210122102110021 - 2⁷ = 210122102109893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210122102109977 and 210122102110004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122102110001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088291946 + ... + 1088485003.

It is an arithmetic number, because the mean of its divisors is an integer number (26604567882900).

Almost surely, 2^{210122102110021} is an apocalyptic number.

It is an amenable number.

210122102110021 is a deficient number, since it is larger than the sum of its proper divisors (2714440953179).

210122102110021 is a wasteful number, since it uses less digits than its factorization.

210122102110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176778195.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210122102110021 its reverse (120011201221012), we get a palindrome (330133303331033).

The spelling of 210122102110021 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred two million, one hundred ten thousand, twenty-one".