121001012 has 24 divisors (see below), whose sum is σ = 231390432. Its totient is φ = 54908000.

The previous prime is 121000993. The next prime is 121001033. The reversal of 121001012 is 210100121.

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 7 ways as a sum of consecutive naturals, for example, 28883 + ... + 32805.

It is an arithmetic number, because the mean of its divisors is an integer number (9641268).

Almost surely, 2^121001012 is an apocalyptic number.

It is an amenable number.

121001012 is a deficient number, since it is larger than the sum of its proper divisors (110389420).

121001012 is a wasteful number, since it uses less digits than its factorization.

121001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639 (or 4637 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 121001012 is about 11000.0459999038. The cubic root of 121001012 is about 494.6101232303.

Adding to 121001012 its reverse (210100121), we get a palindrome (331101133).

The spelling of 121001012 in words is "one hundred twenty-one million, one thousand, twelve".