121111022202112 has 36 divisors (see below), whose sum is σ = 241749664959460. Its totient is φ = 60555333132288.

The previous prime is 121111022202061. The next prime is 121111022202143. The reversal of 121111022202112 is 211202220111121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47182391675136 + 73928630526976 = 6868944^2 + 8598176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121111022202112.

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 3 ways as a sum of consecutive naturals, for example, 151715314 + ... + 152511502.

Almost surely, 2^{121111022202112} is an apocalyptic number.

It is an amenable number.

121111022202112 is a deficient number, since it is larger than the sum of its proper divisors (120638642757348).

121111022202112 is an frugal number, since it uses more digits than its factorization.

121111022202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390398 (or 1390384 counting only the distinct ones).

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

Adding to 121111022202112 its reverse (211202220111121), we get a palindrome (332313242313233).

The spelling of 121111022202112 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-two million, two hundred two thousand, one hundred twelve".