12201011012100 has 72 divisors (see below), whose sum is σ = 35631513374688. Its totient is φ = 3223195424000.

The previous prime is 12201011012089. The next prime is 12201011012101. The reversal of 12201011012100 is 121011010221.

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 (12201011012101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190014801 + ... + 190079000.

It is an arithmetic number, because the mean of its divisors is an integer number (494882130204).

Almost surely, 2^{12201011012100} is an apocalyptic number.

12201011012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201011012100 is an abundant number, since it is smaller than the sum of its proper divisors (23430502362588).

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

12201011012100 is a wasteful number, since it uses less digits than its factorization.

12201011012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380093925 (or 380093918 counting only the distinct ones).

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

Adding to 12201011012100 its reverse (121011010221), we get a palindrome (12322022022321).

The spelling of 12201011012100 in words is "twelve trillion, two hundred one billion, eleven million, twelve thousand, one hundred".