12112212121010 has 16 divisors (see below), whose sum is σ = 22213339966296. Its totient is φ = 4753471926528.

The previous prime is 12112212121001. The next prime is 12112212121019. The reversal of 12112212121010 is 1012121221121.

It is an interprime number because it is at equal distance from previous prime (12112212121001) and next prime (12112212121019).

It can be written as a sum of positive squares in 4 ways, for example, as 11530011074569 + 582201046441 = 3395587^2 + 763021^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12112212121010.

It is not an unprimeable number, because it can be changed into a prime (12112212121019) 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, 11426614679 + ... + 11426615738.

Almost surely, 2^{12112212121010} is an apocalyptic number.

12112212121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12112212121010 is a deficient number, since it is larger than the sum of its proper divisors (10101127845286).

12112212121010 is a wasteful number, since it uses less digits than its factorization.

12112212121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853230477.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12112212121010 its reverse (1012121221121), we get a palindrome (13124333342131).

The spelling of 12112212121010 in words is "twelve trillion, one hundred twelve billion, two hundred twelve million, one hundred twenty-one thousand, ten".