12021001112100 has 72 divisors (see below), whose sum is σ = 35199808630560. Its totient is φ = 3166978599680.

The previous prime is 12021001112059. The next prime is 12021001112119. The reversal of 12021001112100 is 121110012021.

It is a super-3 number, since 3×12021001112100³ (a number of 40 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241360665 + ... + 241410464.

It is an arithmetic number, because the mean of its divisors is an integer number (488886230980).

Almost surely, 2^{12021001112100} is an apocalyptic number.

12021001112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021001112100 is an abundant number, since it is smaller than the sum of its proper divisors (23178807518460).

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

12021001112100 is a wasteful number, since it uses less digits than its factorization.

12021001112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482771229 (or 482771222 counting only the distinct ones).

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

Adding to 12021001112100 its reverse (121110012021), we get a palindrome (12142111124121).

The spelling of 12021001112100 in words is "twelve trillion, twenty-one billion, one million, one hundred twelve thousand, one hundred".