210212122122123 has 32 divisors (see below), whose sum is σ = 308856125233152. Its totient is φ = 126113056704000.

The previous prime is 210212122122113. The next prime is 210212122122157. The reversal of 210212122122123 is 321221221212012.

It is not a de Polignac number, because 210212122122123 - 2¹² = 210212122118027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210212122122093 and 210212122122102.

It is not an unprimeable number, because it can be changed into a prime (210212122122113) 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, 8969811 + ... + 22380387.

It is an arithmetic number, because the mean of its divisors is an integer number (9651753913536).

Almost surely, 2^{210212122122123} is an apocalyptic number.

210212122122123 is a deficient number, since it is larger than the sum of its proper divisors (98644003111029).

210212122122123 is a wasteful number, since it uses less digits than its factorization.

210212122122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415395.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 210212122122123 its reverse (321221221212012), we get a palindrome (531433343334135).

The spelling of 210212122122123 in words is "two hundred ten trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-three".