1210200212123 has 4 divisors (see below), whose sum is σ = 1383085956720. Its totient is φ = 1037314467528.

The previous prime is 1210200212087. The next prime is 1210200212129. The reversal of 1210200212123 is 3212120020121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210200212123 - 2¹⁸ = 1210199949979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210200212129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86442872288 + ... + 86442872301.

It is an arithmetic number, because the mean of its divisors is an integer number (345771489180).

Almost surely, 2^{1210200212123} is an apocalyptic number.

1210200212123 is a deficient number, since it is larger than the sum of its proper divisors (172885744597).

1210200212123 is an equidigital number, since it uses as much as digits as its factorization.

1210200212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172885744596.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1210200212123 its reverse (3212120020121), we get a palindrome (4422320232244).

The spelling of 1210200212123 in words is "one trillion, two hundred ten billion, two hundred million, two hundred twelve thousand, one hundred twenty-three".