202020212 has 6 divisors (see below), whose sum is σ = 353535378. Its totient is φ = 101010104.

The previous prime is 202020193. The next prime is 202020253. The reversal of 202020212 is 212020202.

It can be written as a sum of positive squares in only one way, i.e., 158407396 + 43612816 = 12586^2 + 6604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202020193 and 202020202.

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, 25252523 + ... + 25252530.

It is an arithmetic number, because the mean of its divisors is an integer number (58922563).

Almost surely, 2^202020212 is an apocalyptic number.

It is an amenable number.

202020212 is a deficient number, since it is larger than the sum of its proper divisors (151515166).

202020212 is a wasteful number, since it uses less digits than its factorization.

202020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50505057 (or 50505055 counting only the distinct ones).

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

The square root of 202020212 is about 14213.3814414445. The cubic root of 202020212 is about 586.7660000247.

Adding to 202020212 its reverse (212020202), we get a palindrome (414040414).

The spelling of 202020212 in words is "two hundred two million, twenty thousand, two hundred twelve".