20022121002212 has 48 divisors (see below), whose sum is σ = 40542384943872. Its totient is φ = 8474704573440.

The previous prime is 20022121002187. The next prime is 20022121002217. The reversal of 20022121002212 is 21220012122002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20022121002217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10370888 + ... + 12149055.

It is an arithmetic number, because the mean of its divisors is an integer number (844633019664).

Almost surely, 2^{20022121002212} is an apocalyptic number.

It is an amenable number.

20022121002212 is an abundant number, since it is smaller than the sum of its proper divisors (20520263941660).

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

20022121002212 is a wasteful number, since it uses less digits than its factorization.

20022121002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520348 (or 22520346 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20022121002212 its reverse (21220012122002), we get a palindrome (41242133124214).

The spelling of 20022121002212 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, two thousand, two hundred twelve".