20020020212 has 6 divisors (see below), whose sum is σ = 35035035378. Its totient is φ = 10010010104.

The previous prime is 20020020191. The next prime is 20020020221. The reversal of 20020020212 is 21202002002.

It can be written as a sum of positive squares in only one way, i.e., 16016421136 + 4003599076 = 126556^2 + 63274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20020020193 and 20020020202.

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, 2502502523 + ... + 2502502530.

It is an arithmetic number, because the mean of its divisors is an integer number (5839172563).

Almost surely, 2^20020020212 is an apocalyptic number.

It is an amenable number.

20020020212 is a deficient number, since it is larger than the sum of its proper divisors (15015015166).

20020020212 is a wasteful number, since it uses less digits than its factorization.

20020020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005005057 (or 5005005055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20020020212 its reverse (21202002002), we get a palindrome (41222022214).

The spelling of 20020020212 in words is "twenty billion, twenty million, twenty thousand, two hundred twelve".