121001002012 has 24 divisors (see below), whose sum is σ = 231052614912. Its totient is φ = 54988383600.

The previous prime is 121001001997. The next prime is 121001002079. The reversal of 121001002012 is 210200100121.

It is a self number, because there is not a number n which added to its sum of digits gives 121001002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97498 + ... + 501505.

It is an arithmetic number, because the mean of its divisors is an integer number (9627192288).

Almost surely, 2^121001002012 is an apocalyptic number.

It is an amenable number.

121001002012 is a deficient number, since it is larger than the sum of its proper divisors (110051612900).

121001002012 is a wasteful number, since it uses less digits than its factorization.

121001002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603609 (or 603607 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121001002012 its reverse (210200100121), we get a palindrome (331201102133).

The spelling of 121001002012 in words is "one hundred twenty-one billion, one million, two thousand, twelve".