12121005011446 has 16 divisors (see below), whose sum is σ = 18193591966176. Its totient is φ = 6056474651136.

The previous prime is 12121005011387. The next prime is 12121005011449. The reversal of 12121005011446 is 64411050012121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121005011449) 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, 108083215 + ... + 108195301.

It is an arithmetic number, because the mean of its divisors is an integer number (1137099497886).

Almost surely, 2^{12121005011446} is an apocalyptic number.

12121005011446 is a deficient number, since it is larger than the sum of its proper divisors (6072586954730).

12121005011446 is a wasteful number, since it uses less digits than its factorization.

12121005011446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147543.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 12121005011446 its reverse (64411050012121), we get a palindrome (76532055023567).

The spelling of 12121005011446 in words is "twelve trillion, one hundred twenty-one billion, five million, eleven thousand, four hundred forty-six".