12002021222120 has 64 divisors (see below), whose sum is σ = 30097947988800. Its totient is φ = 4280597038080.

The previous prime is 12002021222119. The next prime is 12002021222129. The reversal of 12002021222120 is 2122212020021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (12002021222129) 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, 464461586 + ... + 464487425.

It is an arithmetic number, because the mean of its divisors is an integer number (470280437325).

Almost surely, 2^{12002021222120} is an apocalyptic number.

12002021222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002021222120 is an abundant number, since it is smaller than the sum of its proper divisors (18095926766680).

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

12002021222120 is a wasteful number, since it uses less digits than its factorization.

12002021222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928949058 (or 928949054 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12002021222120 its reverse (2122212020021), we get a palindrome (14124233242141).

The spelling of 12002021222120 in words is "twelve trillion, two billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty".