121402012 has 12 divisors (see below), whose sum is σ = 216462456. Its totient is φ = 59555600.

The previous prime is 121402009. The next prime is 121402019. The reversal of 121402012 is 210204121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121401983 and 121402001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121402019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286114 + ... + 286537.

It is an arithmetic number, because the mean of its divisors is an integer number (18038538).

Almost surely, 2^121402012 is an apocalyptic number.

It is an amenable number.

121402012 is a deficient number, since it is larger than the sum of its proper divisors (95060444).

121402012 is a wasteful number, since it uses less digits than its factorization.

121402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572708 (or 572706 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 121402012 is about 11018.2581200478. The cubic root of 121402012 is about 495.1559036858.

Adding to 121402012 its reverse (210204121), we get a palindrome (331606133).

The spelling of 121402012 in words is "one hundred twenty-one million, four hundred two thousand, twelve".