121100101000002 has 32 divisors (see below), whose sum is σ = 269750554930560. Its totient is φ = 40270817427120.

The previous prime is 121100101000001. The next prime is 121100101000019. The reversal of 121100101000002 is 200000101001121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121100101000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663391118 + ... + 2663436585.

It is an arithmetic number, because the mean of its divisors is an integer number (8429704841580).

Almost surely, 2^{121100101000002} is an apocalyptic number.

121100101000002 is an abundant number, since it is smaller than the sum of its proper divisors (148650453930558).

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

121100101000002 is a wasteful number, since it uses less digits than its factorization.

121100101000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326828135 (or 5326828129 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 121100101000002 its reverse (200000101001121), we get a palindrome (321100202001123).

The spelling of 121100101000002 in words is "one hundred twenty-one trillion, one hundred billion, one hundred one million, two", and thus it is an aban number.