10202121212212 has 24 divisors (see below), whose sum is σ = 17863355220480. Its totient is φ = 5098305764160.

The previous prime is 10202121212183. The next prime is 10202121212263. The reversal of 10202121212212 is 21221212120201.

It is a self number, because there is not a number n which added to its sum of digits gives 10202121212212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169753464 + ... + 169813552.

It is an arithmetic number, because the mean of its divisors is an integer number (744306467520).

Almost surely, 2^{10202121212212} is an apocalyptic number.

It is an amenable number.

10202121212212 is a deficient number, since it is larger than the sum of its proper divisors (7661234008268).

10202121212212 is a wasteful number, since it uses less digits than its factorization.

10202121212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82311 (or 82309 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10202121212212 its reverse (21221212120201), we get a palindrome (31423333332413).

The spelling of 10202121212212 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, two hundred twelve thousand, two hundred twelve".