1210112121100 has 18 divisors (see below), whose sum is σ = 2625943303004. Its totient is φ = 484044848400.

The previous prime is 1210112121089. The next prime is 1210112121121. The reversal of 1210112121100 is 11212110121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6050560506 + ... + 6050560705.

Almost surely, 2^{1210112121100} is an apocalyptic number.

1210112121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210112121100 is an abundant number, since it is smaller than the sum of its proper divisors (1415831181904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210112121100 is a wasteful number, since it uses less digits than its factorization.

1210112121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12101121225 (or 12101121218 counting only the distinct ones).

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

Adding to 1210112121100 its reverse (11212110121), we get a palindrome (1221324231221).

The spelling of 1210112121100 in words is "one trillion, two hundred ten billion, one hundred twelve million, one hundred twenty-one thousand, one hundred".