121002222012102 has 112 divisors (see below), whose sum is σ = 273887663440032. Its totient is φ = 40073681007360.

The previous prime is 121002222012079. The next prime is 121002222012107. The reversal of 121002222012102 is 201210222200121.

It is a happy number.

121002222012102 is a `hidden beast` number, since 1 + 210 + 0 + 22 + 220 + 1 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002222012107) 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 55 ways as a sum of consecutive naturals, for example, 5092459902 + ... + 5092483662.

Almost surely, 2^{121002222012102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121002222012102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136943831720016).

121002222012102 is an abundant number, since it is smaller than the sum of its proper divisors (152885441427930).

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

121002222012102 is a wasteful number, since it uses less digits than its factorization.

121002222012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46185 (or 46170 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121002222012102 its reverse (201210222200121), we get a palindrome (322212444212223).

The spelling of 121002222012102 in words is "one hundred twenty-one trillion, two billion, two hundred twenty-two million, twelve thousand, one hundred two".