102221122012 has 12 divisors (see below), whose sum is σ = 178915272480. Its totient is φ = 51102472736.

The previous prime is 102221121991. The next prime is 102221122013. The reversal of 102221122012 is 210221122201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221122013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993588 + ... + 2044219.

It is an arithmetic number, because the mean of its divisors is an integer number (14909606040).

Almost surely, 2^102221122012 is an apocalyptic number.

It is an amenable number.

102221122012 is a deficient number, since it is larger than the sum of its proper divisors (76694150468).

102221122012 is a wasteful number, since it uses less digits than its factorization.

102221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044140 (or 4044138 counting only the distinct ones).

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

Adding to 102221122012 its reverse (210221122201), we get a palindrome (312442244213).

The spelling of 102221122012 in words is "one hundred two billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".