12101100121210 has 16 divisors (see below), whose sum is σ = 21782087219592. Its totient is φ = 4840416270400.

The previous prime is 12101100121199. The next prime is 12101100121247. The reversal of 12101100121210 is 1212100110121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5588339977089 + 6512760144121 = 2363967^2 + 2552011^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756121 + ... + 4977340.

Almost surely, 2^{12101100121210} is an apocalyptic number.

12101100121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101100121210 is a deficient number, since it is larger than the sum of its proper divisors (9680987098382).

12101100121210 is a wasteful number, since it uses less digits than its factorization.

12101100121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944529.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12101100121210 its reverse (1212100110121), we get a palindrome (13313200231331).

The spelling of 12101100121210 in words is "twelve trillion, one hundred one billion, one hundred million, one hundred twenty-one thousand, two hundred ten".