20021022020212 has 6 divisors (see below), whose sum is σ = 35036788535378. Its totient is φ = 10010511010104.

The previous prime is 20021022020183. The next prime is 20021022020249. The reversal of 20021022020212 is 21202022012002.

It can be written as a sum of positive squares in only one way, i.e., 12699430267876 + 7321591752336 = 3563626^2 + 2705844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502627752523 + ... + 2502627752530.

Almost surely, 2^{20021022020212} is an apocalyptic number.

It is an amenable number.

20021022020212 is a deficient number, since it is larger than the sum of its proper divisors (15015766515166).

20021022020212 is a wasteful number, since it uses less digits than its factorization.

20021022020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005255505057 (or 5005255505055 counting only the distinct ones).

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

Adding to 20021022020212 its reverse (21202022012002), we get a palindrome (41223044032214).

The spelling of 20021022020212 in words is "twenty trillion, twenty-one billion, twenty-two million, twenty thousand, two hundred twelve".