121211012001112 has 16 divisors (see below), whose sum is σ = 247931615457000. Its totient is φ = 55095914545920.

The previous prime is 121211012001103. The next prime is 121211012001119. The reversal of 121211012001112 is 211100210112121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211012001119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688698931737 + ... + 688698931912.

Almost surely, 2^{121211012001112} is an apocalyptic number.

It is an amenable number.

121211012001112 is an abundant number, since it is smaller than the sum of its proper divisors (126720603455888).

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

121211012001112 is a wasteful number, since it uses less digits than its factorization.

121211012001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377397863666 (or 1377397863662 counting only the distinct ones).

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

Adding to 121211012001112 its reverse (211100210112121), we get a palindrome (332311222113233).

The spelling of 121211012001112 in words is "one hundred twenty-one trillion, two hundred eleven billion, twelve million, one thousand, one hundred twelve".