121002201112 has 64 divisors (see below), whose sum is σ = 258779949120. Its totient is φ = 52546572288.

The previous prime is 121002201059. The next prime is 121002201137. The reversal of 121002201112 is 211102200121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 121002201092 and 121002201101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7642228 + ... + 7658044.

It is an arithmetic number, because the mean of its divisors is an integer number (4043436705).

Almost surely, 2^121002201112 is an apocalyptic number.

It is an amenable number.

121002201112 is an abundant number, since it is smaller than the sum of its proper divisors (137777748008).

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

121002201112 is a wasteful number, since it uses less digits than its factorization.

121002201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20180 (or 20176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121002201112 its reverse (211102200121), we get a palindrome (332104401233).

Subtracting 121002201112 from its reverse (211102200121), we obtain a palindrome (90099999009).

The spelling of 121002201112 in words is "one hundred twenty-one billion, two million, two hundred one thousand, one hundred twelve".