121000002012 has 24 divisors (see below), whose sum is σ = 313703709200. Its totient is φ = 40333333968.

The previous prime is 121000001849. The next prime is 121000002017. The reversal of 121000002012 is 210200000121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121000001985 and 121000002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000002017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560185087 + ... + 560185302.

Almost surely, 2^121000002012 is an apocalyptic number.

121000002012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121000002012 is an abundant number, since it is smaller than the sum of its proper divisors (192703707188).

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

121000002012 is a wasteful number, since it uses less digits than its factorization.

121000002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120370402 (or 1120370394 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 121000002012 its reverse (210200000121), we get a palindrome (331200002133).

The spelling of 121000002012 in words is "one hundred twenty-one billion, two thousand, twelve".