20212020212 has 48 divisors (see below), whose sum is σ = 37103506944. Its totient is φ = 9622800000.

The previous prime is 20212020133. The next prime is 20212020217. The reversal of 20212020212 is 21202021202.

It is a super-2 number, since 2×20212020212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212020217) 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, 2036462 + ... + 2046362.

It is an arithmetic number, because the mean of its divisors is an integer number (772989728).

Almost surely, 2^20212020212 is an apocalyptic number.

It is an amenable number.

20212020212 is a deficient number, since it is larger than the sum of its proper divisors (16891486732).

20212020212 is a wasteful number, since it uses less digits than its factorization.

20212020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200 (or 10198 counting only the distinct ones).

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

Adding to 20212020212 its reverse (21202021202), we get a palindrome (41414041414).

The spelling of 20212020212 in words is "twenty billion, two hundred twelve million, twenty thousand, two hundred twelve".