210122011123 has 8 divisors (see below), whose sum is σ = 221363430800. Its totient is φ = 198898828128.

The previous prime is 210122011093. The next prime is 210122011153. The reversal of 210122011123 is 321110221012.

It is an interprime number because it is at equal distance from previous prime (210122011093) and next prime (210122011153).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210122011123 is a prime.

It is a super-2 number, since 2×210122011123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210122011097 and 210122011106.

It is not an unprimeable number, because it can be changed into a prime (210122011153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4535508 + ... + 4581601.

It is an arithmetic number, because the mean of its divisors is an integer number (27670428850).

Almost surely, 2^210122011123 is an apocalyptic number.

210122011123 is a deficient number, since it is larger than the sum of its proper divisors (11241419677).

210122011123 is a wasteful number, since it uses less digits than its factorization.

210122011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118341.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210122011123 its reverse (321110221012), we get a palindrome (531232232135).

The spelling of 210122011123 in words is "two hundred ten billion, one hundred twenty-two million, eleven thousand, one hundred twenty-three".