20022212122120 has 256 divisors, whose sum is σ = 49457371299840. Its totient is φ = 7250781339648.

The previous prime is 20022212122063. The next prime is 20022212122127. The reversal of 20022212122120 is 2122121222002.

It is not an unprimeable number, because it can be changed into a prime (20022212122127) 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, 11229506749 + ... + 11229508531.

It is an arithmetic number, because the mean of its divisors is an integer number (193192856640).

Almost surely, 2^{20022212122120} is an apocalyptic number.

20022212122120 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 20022212122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24728685649920).

20022212122120 is an abundant number, since it is smaller than the sum of its proper divisors (29435159177720).

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

20022212122120 is a wasteful number, since it uses less digits than its factorization.

20022212122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022212122120 its reverse (2122121222002), we get a palindrome (22144333344122).

The spelling of 20022212122120 in words is "twenty trillion, twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty".