1212120100112 has 20 divisors (see below), whose sum is σ = 2359014013440. Its totient is φ = 603342290208.

The previous prime is 1212120100057. The next prime is 1212120100123. The reversal of 1212120100112 is 2110010212121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169856312 + ... + 169863447.

It is an arithmetic number, because the mean of its divisors is an integer number (117950700672).

Almost surely, 2^{1212120100112} is an apocalyptic number.

It is an amenable number.

1212120100112 is a deficient number, since it is larger than the sum of its proper divisors (1146893913328).

1212120100112 is a wasteful number, since it uses less digits than its factorization.

1212120100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339719990 (or 339719984 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212120100112 its reverse (2110010212121), we get a palindrome (3322130312233).

The spelling of 1212120100112 in words is "one trillion, two hundred twelve billion, one hundred twenty million, one hundred thousand, one hundred twelve".