12121022111300 has 36 divisors (see below), whose sum is σ = 27209604814980. Its totient is φ = 4681222331520.

The previous prime is 12121022111239. The next prime is 12121022111333. The reversal of 12121022111300 is 311122012121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 583424047684 + 11537598063616 = 763822^2 + 3396704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2089828499 + ... + 2089834298.

Almost surely, 2^{12121022111300} is an apocalyptic number.

12121022111300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121022111300 is an abundant number, since it is smaller than the sum of its proper divisors (15088582703680).

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

12121022111300 is a wasteful number, since it uses less digits than its factorization.

12121022111300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179662840 (or 4179662833 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12121022111300 its reverse (311122012121), we get a palindrome (12432144123421).

The spelling of 12121022111300 in words is "twelve trillion, one hundred twenty-one billion, twenty-two million, one hundred eleven thousand, three hundred".