102112221221212 has 12 divisors (see below), whose sum is σ = 181625836107016. Its totient is φ = 50219125190640.

The previous prime is 102112221221201. The next prime is 102112221221233. The reversal of 102112221221212 is 212122122211201.

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, 209246354718 + ... + 209246355205.

Almost surely, 2^{102112221221212} is an apocalyptic number.

It is an amenable number.

102112221221212 is a deficient number, since it is larger than the sum of its proper divisors (79513614885804).

102112221221212 is a wasteful number, since it uses less digits than its factorization.

102112221221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418492709988 (or 418492709986 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 102112221221212 its reverse (212122122211201), we get a palindrome (314234343432413).

The spelling of 102112221221212 in words is "one hundred two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twelve".