121111001112002 has 24 divisors (see below), whose sum is σ = 199687253931900. Its totient is φ = 55049286211040.

The previous prime is 121111001111993. The next prime is 121111001112011. The reversal of 121111001112002 is 200211100111121.

It is an interprime number because it is at equal distance from previous prime (121111001111993) and next prime (121111001112011).

It can be written as a sum of positive squares in 2 ways, for example, as 107473424229721 + 13637576882281 = 10366939^2 + 3692909^2 .

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 11 ways as a sum of consecutive naturals, for example, 6159524 + ... + 16738032.

Almost surely, 2^{121111001112002} is an apocalyptic number.

121111001112002 is a deficient number, since it is larger than the sum of its proper divisors (78576252819898).

121111001112002 is a wasteful number, since it uses less digits than its factorization.

121111001112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625842 (or 10625831 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121111001112002 its reverse (200211100111121), we get a palindrome (321322101223123).

The spelling of 121111001112002 in words is "one hundred twenty-one trillion, one hundred eleven billion, one million, one hundred twelve thousand, two".