102021211112 has 16 divisors (see below), whose sum is σ = 191315840100. Its totient is φ = 51003653760.

The previous prime is 102021211093. The next prime is 102021211169. The reversal of 102021211112 is 211112120201.

It can be written as a sum of positive squares in 2 ways, for example, as 76954088836 + 25067122276 = 277406^2 + 158326^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806339 + ... + 924242.

Almost surely, 2^102021211112 is an apocalyptic number.

It is an amenable number.

102021211112 is a deficient number, since it is larger than the sum of its proper divisors (89294628988).

102021211112 is a wasteful number, since it uses less digits than its factorization.

102021211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737956 (or 1737952 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021211112 its reverse (211112120201), we get a palindrome (313133331313).

The spelling of 102021211112 in words is "one hundred two billion, twenty-one million, two hundred eleven thousand, one hundred twelve".