20022102212 has 48 divisors (see below), whose sum is σ = 41065487232. Its totient is φ = 8362932480.

The previous prime is 20022102211. The next prime is 20022102227. The reversal of 20022102212 is 21220122002.

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

It is not an unprimeable number, because it can be changed into a prime (20022102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537008 + ... + 573080.

It is an arithmetic number, because the mean of its divisors is an integer number (855530984).

Almost surely, 2^20022102212 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 20022102212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20532743616).

20022102212 is an abundant number, since it is smaller than the sum of its proper divisors (21043385020).

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

20022102212 is a wasteful number, since it uses less digits than its factorization.

20022102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36588 (or 36586 counting only the distinct ones).

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

Adding to 20022102212 its reverse (21220122002), we get a palindrome (41242224214).

The spelling of 20022102212 in words is "twenty billion, twenty-two million, one hundred two thousand, two hundred twelve".