12020021222000 has 160 divisors (see below), whose sum is σ = 31756915427328. Its totient is φ = 4363984800000.

The previous prime is 12020021221991. The next prime is 12020021222003. The reversal of 12020021222000 is 22212002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020021222003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13449065 + ... + 14314935.

Almost surely, 2^{12020021222000} is an apocalyptic number.

12020021222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020021222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15878457713664).

12020021222000 is an abundant number, since it is smaller than the sum of its proper divisors (19736894205328).

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

12020021222000 is a wasteful number, since it uses less digits than its factorization.

12020021222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866536 (or 866520 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12020021222000 its reverse (22212002021), we get a palindrome (12042233224021).

The spelling of 12020021222000 in words is "twelve trillion, twenty billion, twenty-one million, two hundred twenty-two thousand".