20120021222000 has 320 divisors, whose sum is σ = 56917971302400. Its totient is φ = 6876039072000.

The previous prime is 20120021221999. The next prime is 20120021222009. The reversal of 20120021222000 is 22212002102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120021222009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 213298847 + ... + 213393153.

It is an arithmetic number, because the mean of its divisors is an integer number (177868660320).

Almost surely, 2^{20120021222000} is an apocalyptic number.

20120021222000 is a gapful number since it is divisible by the number (20) 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 20120021222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28458985651200).

20120021222000 is an abundant number, since it is smaller than the sum of its proper divisors (36797950080400).

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

20120021222000 is an equidigital number, since it uses as much as digits as its factorization.

20120021222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94662 (or 94632 counting only the distinct ones).

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

Adding to 20120021222000 its reverse (22212002102), we get a palindrome (20142233224102).

The spelling of 20120021222000 in words is "twenty trillion, one hundred twenty billion, twenty-one million, two hundred twenty-two thousand".