102210021212 has 12 divisors (see below), whose sum is σ = 192626578536. Its totient is φ = 47173855920.

The previous prime is 102210021187. The next prime is 102210021217. The reversal of 102210021212 is 212120012201.

It is a super-3 number, since 3×102210021212³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982788614 + ... + 982788717.

It is an arithmetic number, because the mean of its divisors is an integer number (16052214878).

Almost surely, 2^102210021212 is an apocalyptic number.

It is an amenable number.

102210021212 is a deficient number, since it is larger than the sum of its proper divisors (90416557324).

102210021212 is a wasteful number, since it uses less digits than its factorization.

102210021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965577348 (or 1965577346 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102210021212 its reverse (212120012201), we get a palindrome (314330033413).

The spelling of 102210021212 in words is "one hundred two billion, two hundred ten million, twenty-one thousand, two hundred twelve".