121120212210112 has 56 divisors (see below), whose sum is σ = 248637762464400. Its totient is φ = 58471360475136.

The previous prime is 121120212210091. The next prime is 121120212210169. The reversal of 121120212210112 is 211012212021121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121120212210112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 391745439 + ... + 392054497.

Almost surely, 2^{121120212210112} is an apocalyptic number.

It is an amenable number.

121120212210112 is an abundant number, since it is smaller than the sum of its proper divisors (127517550254288).

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

121120212210112 is a wasteful number, since it uses less digits than its factorization.

121120212210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520253 (or 520243 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121120212210112 its reverse (211012212021121), we get a palindrome (332132424231233).

The spelling of 121120212210112 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twelve million, two hundred ten thousand, one hundred twelve".