202021211212 has 24 divisors (see below), whose sum is σ = 362066235552. Its totient is φ = 98601888000.

The previous prime is 202021211201. The next prime is 202021211233. The reversal of 202021211212 is 212112120202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492813 + ... + 3550180.

It is an arithmetic number, because the mean of its divisors is an integer number (15086093148).

Almost surely, 2^202021211212 is an apocalyptic number.

It is an amenable number.

202021211212 is a deficient number, since it is larger than the sum of its proper divisors (160045024340).

202021211212 is a wasteful number, since it uses less digits than its factorization.

202021211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043169 (or 7043167 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202021211212 its reverse (212112120202), we get a palindrome (414133331414).

The spelling of 202021211212 in words is "two hundred two billion, twenty-one million, two hundred eleven thousand, two hundred twelve".