12100121100012 has 48 divisors (see below), whose sum is σ = 32421377116800. Its totient is φ = 3473718975360.

The previous prime is 12100121099999. The next prime is 12100121100013. The reversal of 12100121100012 is 21000112100121.

It is a super-2 number, since 2×12100121100012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12100121100013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412302337 + ... + 2412307352.

It is an arithmetic number, because the mean of its divisors is an integer number (675445356600).

Almost surely, 2^{12100121100012} is an apocalyptic number.

12100121100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12100121100012 is an abundant number, since it is smaller than the sum of its proper divisors (20321256016788).

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

12100121100012 is a wasteful number, since it uses less digits than its factorization.

12100121100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824609726 (or 4824609724 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12100121100012 its reverse (21000112100121), we get a palindrome (33100233200133).

The spelling of 12100121100012 in words is "twelve trillion, one hundred billion, one hundred twenty-one million, one hundred thousand, twelve".