10202212121212 has 12 divisors (see below), whose sum is σ = 17854243650936. Its totient is φ = 5100999649520.

The previous prime is 10202212121201. The next prime is 10202212121237. The reversal of 10202212121212 is 21212121220201.

It is a self number, because there is not a number n which added to its sum of digits gives 10202212121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26386858 + ... + 26770705.

It is an arithmetic number, because the mean of its divisors is an integer number (1487853637578).

Almost surely, 2^{10202212121212} is an apocalyptic number.

It is an amenable number.

10202212121212 is a deficient number, since it is larger than the sum of its proper divisors (7652031529724).

10202212121212 is a wasteful number, since it uses less digits than its factorization.

10202212121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53205548 (or 53205546 counting only the distinct ones).

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

Adding to 10202212121212 its reverse (21212121220201), we get a palindrome (31414333341413).

The spelling of 10202212121212 in words is "ten trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twelve".