121212110011112 has 16 divisors (see below), whose sum is σ = 227272823511360. Its totient is φ = 60606023741424.

The previous prime is 121212110011081. The next prime is 121212110011127. The reversal of 121212110011112 is 211110011212121.

It is a super-2 number, since 2×121212110011112² (a number of 29 digits) contains 22 as substring.

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, 26352383 + ... + 30608369.

It is an arithmetic number, because the mean of its divisors is an integer number (14204551469460).

Almost surely, 2^{121212110011112} is an apocalyptic number.

It is an amenable number.

121212110011112 is a deficient number, since it is larger than the sum of its proper divisors (106060713500248).

121212110011112 is a wasteful number, since it uses less digits than its factorization.

121212110011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7816040 (or 7816036 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121212110011112 its reverse (211110011212121), we get a palindrome (332322121223233).

The spelling of 121212110011112 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred ten million, eleven thousand, one hundred twelve".