12021200001100 has 36 divisors (see below), whose sum is σ = 27458951585800. Its totient is φ = 4555402104960.

The previous prime is 12021200001071. The next prime is 12021200001149. The reversal of 12021200001100 is 110000212021.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 3163471785 + ... + 3163475584.

Almost surely, 2^{12021200001100} is an apocalyptic number.

12021200001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021200001100 is an abundant number, since it is smaller than the sum of its proper divisors (15437751584700).

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

12021200001100 is a wasteful number, since it uses less digits than its factorization.

12021200001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326947402 (or 6326947395 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12021200001100 its reverse (110000212021), we get a palindrome (12131200213121).

The spelling of 12021200001100 in words is "twelve trillion, twenty-one billion, two hundred million, one thousand, one hundred".