20001022022212 has 384 divisors, whose sum is σ = 45887320378368. Its totient is φ = 7405572096000.

The previous prime is 20001022022203. The next prime is 20001022022239. The reversal of 20001022022212 is 21222022010002.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16488888118 + ... + 16488889330.

It is an arithmetic number, because the mean of its divisors is an integer number (119498230152).

Almost surely, 2^{20001022022212} is an apocalyptic number.

20001022022212 is a gapful number since it is divisible by the number (22) 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 20001022022212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22943660189184).

20001022022212 is an abundant number, since it is smaller than the sum of its proper divisors (25886298356156).

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

20001022022212 is a wasteful number, since it uses less digits than its factorization.

20001022022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20001022022212 its reverse (21222022010002), we get a palindrome (41223044032214).

It can be divided in two parts, 200010 and 22022212, that added together give a palindrome (22222222).

The spelling of 20001022022212 in words is "twenty trillion, one billion, twenty-two million, twenty-two thousand, two hundred twelve".