12101212210 has 8 divisors (see below), whose sum is σ = 21782181996. Its totient is φ = 4840484880.

The previous prime is 12101212199. The next prime is 12101212213. The reversal of 12101212210 is 1221210121.

It can be written as a sum of positive squares in 2 ways, for example, as 11988279081 + 112933129 = 109491^2 + 10627^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12101212213) 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, 605060601 + ... + 605060620.

Almost surely, 2^12101212210 is an apocalyptic number.

12101212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101212210 is a deficient number, since it is larger than the sum of its proper divisors (9680969786).

12101212210 is a wasteful number, since it uses less digits than its factorization.

12101212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210121228.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101212210 its reverse (1221210121), we get a palindrome (13322422331).

The spelling of 12101212210 in words is "twelve billion, one hundred one million, two hundred twelve thousand, two hundred ten".