20022220220212 has 96 divisors (see below), whose sum is σ = 41734502208000. Its totient is φ = 8398449835776.

The previous prime is 20022220220209. The next prime is 20022220220269. The reversal of 20022220220212 is 21202202222002.

It is a self number, because there is not a number n which added to its sum of digits gives 20022220220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29404233 + ... + 30077455.

It is an arithmetic number, because the mean of its divisors is an integer number (434734398000).

Almost surely, 2^{20022220220212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022220220212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20867251104000).

20022220220212 is an abundant number, since it is smaller than the sum of its proper divisors (21712281987788).

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

20022220220212 is a wasteful number, since it uses less digits than its factorization.

20022220220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673710 (or 673694 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20022220220212 its reverse (21202202222002), we get a palindrome (41224422442214).

The spelling of 20022220220212 in words is "twenty trillion, twenty-two billion, two hundred twenty million, two hundred twenty thousand, two hundred twelve".