121220011412 has 24 divisors (see below), whose sum is σ = 213451764960. Its totient is φ = 60234763680.

The previous prime is 121220011411. The next prime is 121220011439. The reversal of 121220011412 is 214110022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220011411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380087 + ... + 622017.

It is an arithmetic number, because the mean of its divisors is an integer number (8893823540).

Almost surely, 2^121220011412 is an apocalyptic number.

It is an amenable number.

121220011412 is a deficient number, since it is larger than the sum of its proper divisors (92231753548).

121220011412 is a wasteful number, since it uses less digits than its factorization.

121220011412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242711 (or 242709 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220011412 its reverse (214110022121), we get a palindrome (335330033533).

The spelling of 121220011412 in words is "one hundred twenty-one billion, two hundred twenty million, eleven thousand, four hundred twelve".