121001112112002 has 128 divisors (see below), whose sum is σ = 248169309290496. Its totient is φ = 39321041760000.

The previous prime is 121001112111991. The next prime is 121001112112021. The reversal of 121001112112002 is 200211211100121.

It is a happy number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 23282874468 + ... + 23282879664.

It is an arithmetic number, because the mean of its divisors is an integer number (1938822728832).

Almost surely, 2^{121001112112002} is an apocalyptic number.

121001112112002 is an abundant number, since it is smaller than the sum of its proper divisors (127168197178494).

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

121001112112002 is a wasteful number, since it uses less digits than its factorization.

121001112112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121001112112002 its reverse (200211211100121), we get a palindrome (321212323212123).

The spelling of 121001112112002 in words is "one hundred twenty-one trillion, one billion, one hundred twelve million, one hundred twelve thousand, two".