102212122111210 has 16 divisors (see below), whose sum is σ = 183984030786600. Its totient is φ = 40884357514176.

The previous prime is 102212122111189. The next prime is 102212122111219. The reversal of 102212122111210 is 12111221212201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98069468418009 + 4142653693201 = 9903003^2 + 2035351^2 .

It is not an unprimeable number, because it can be changed into a prime (102212122111219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60541965 + ... + 62207344.

Almost surely, 2^{102212122111210} is an apocalyptic number.

102212122111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102212122111210 is a deficient number, since it is larger than the sum of its proper divisors (81771908675390).

102212122111210 is a wasteful number, since it uses less digits than its factorization.

102212122111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122832585.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102212122111210 its reverse (12111221212201), we get a palindrome (114323343323411).

The spelling of 102212122111210 in words is "one hundred two trillion, two hundred twelve billion, one hundred twenty-two million, one hundred eleven thousand, two hundred ten".