20201212 has 24 divisors (see below), whose sum is σ = 36876672. Its totient is φ = 9672000.

The previous prime is 20201191. The next prime is 20201227. The reversal of 20201212 is 21210202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11718 + ... + 13330.

It is an arithmetic number, because the mean of its divisors is an integer number (1536528).

Almost surely, 2^20201212 is an apocalyptic number.

It is an amenable number.

20201212 is a deficient number, since it is larger than the sum of its proper divisors (16675460).

20201212 is a wasteful number, since it uses less digits than its factorization.

20201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20201212 is about 4494.5758420567. The cubic root of 20201212 is about 272.3490149193.

Adding to 20201212 its reverse (21210202), we get a palindrome (41411414).

The spelling of 20201212 in words is "twenty million, two hundred one thousand, two hundred twelve".