123211120210 has 8 divisors (see below), whose sum is σ = 221780016396. Its totient is φ = 49284448080.

The previous prime is 123211120177. The next prime is 123211120223. The reversal of 123211120210 is 12021112321.

It can be written as a sum of positive squares in 2 ways, for example, as 116347163409 + 6863956801 = 341097^2 + 82849^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6160556001 + ... + 6160556020.

Almost surely, 2^123211120210 is an apocalyptic number.

123211120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123211120210 is a deficient number, since it is larger than the sum of its proper divisors (98568896186).

123211120210 is a wasteful number, since it uses less digits than its factorization.

123211120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321112028.

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

Adding to 123211120210 its reverse (12021112321), we get a palindrome (135232232531).

The spelling of 123211120210 in words is "one hundred twenty-three billion, two hundred eleven million, one hundred twenty thousand, two hundred ten".