12101232221100 has 216 divisors, whose sum is σ = 42497229513648. Its totient is φ = 2854344614400.

The previous prime is 12101232221003. The next prime is 12101232221131. The reversal of 12101232221100 is 112223210121.

12101232221100 is a `hidden beast` number, since 1 + 210 + 1 + 232 + 221 + 1 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16151899 + ... + 16884498.

Almost surely, 2^{12101232221100} is an apocalyptic number.

12101232221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101232221100 is an abundant number, since it is smaller than the sum of its proper divisors (30395997292548).

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

12101232221100 is a wasteful number, since it uses less digits than its factorization.

12101232221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33036465 (or 33036455 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12101232221100 its reverse (112223210121), we get a palindrome (12213455431221).

The spelling of 12101232221100 in words is "twelve trillion, one hundred one billion, two hundred thirty-two million, two hundred twenty-one thousand, one hundred".