20202220212 has 48 divisors (see below), whose sum is σ = 49638489600. Its totient is φ = 6377205600.

The previous prime is 20202220211. The next prime is 20202220219. The reversal of 20202220212 is 21202220202.

It is a junction number, because it is equal to n+sod(n) for n = 20202220191 and 20202220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202220211) 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, 634489 + ... + 665567.

It is an arithmetic number, because the mean of its divisors is an integer number (1034135200).

Almost surely, 2^20202220212 is an apocalyptic number.

It is an amenable number.

20202220212 is an abundant number, since it is smaller than the sum of its proper divisors (29436269388).

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

20202220212 is a wasteful number, since it uses less digits than its factorization.

20202220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33956 (or 33954 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20202220212 its reverse (21202220202), we get a palindrome (41404440414).

The spelling of 20202220212 in words is "twenty billion, two hundred two million, two hundred twenty thousand, two hundred twelve".