211211102122123 has 8 divisors (see below), whose sum is σ = 218503414316880. Its totient is φ = 203919401310240.

The previous prime is 211211102122091. The next prime is 211211102122147. The reversal of 211211102122123 is 321221201112112.

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

It is a cyclic number.

It is not a de Polignac number, because 211211102122123 - 2⁵ = 211211102122091 is a prime.

It is a super-2 number, since 2×211211102122123² (a number of 29 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 = 211211102122094 and 211211102122103.

It is not an unprimeable number, because it can be changed into a prime (211211102123123) 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, 152142808 + ... + 153524773.

It is an arithmetic number, because the mean of its divisors is an integer number (27312926789610).

Almost surely, 2^{211211102122123} is an apocalyptic number.

211211102122123 is a deficient number, since it is larger than the sum of its proper divisors (7292312194757).

211211102122123 is a wasteful number, since it uses less digits than its factorization.

211211102122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305691437.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 211211102122123 its reverse (321221201112112), we get a palindrome (532432303234235).

The spelling of 211211102122123 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-three".