102111110100212 has 12 divisors (see below), whose sum is σ = 178743901444836. Its totient is φ = 51041423973120.

The previous prime is 102111110100157. The next prime is 102111110100227. The reversal of 102111110100212 is 212001011111201.

It can be written as a sum of positive squares in 2 ways, for example, as 15872287872016 + 86238822228196 = 3984004^2 + 9286486^2 .

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, 3532752989 + ... + 3532781892.

It is an arithmetic number, because the mean of its divisors is an integer number (14895325120403).

Almost surely, 2^{102111110100212} is an apocalyptic number.

It is an amenable number.

102111110100212 is a deficient number, since it is larger than the sum of its proper divisors (76632791344624).

102111110100212 is a wasteful number, since it uses less digits than its factorization.

102111110100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7065538498 (or 7065538496 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102111110100212 its reverse (212001011111201), we get a palindrome (314112121211413).

The spelling of 102111110100212 in words is "one hundred two trillion, one hundred eleven billion, one hundred ten million, one hundred thousand, two hundred twelve".