102111000212 has 24 divisors (see below), whose sum is σ = 192448767336. Its totient is φ = 47125997568.

The previous prime is 102111000209. The next prime is 102111000227. The reversal of 102111000212 is 212000111201.

It can be written as a sum of positive squares in 4 ways, for example, as 17647528336 + 84463471876 = 132844^2 + 290626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102111000193 and 102111000202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925768 + ... + 1978080.

It is an arithmetic number, because the mean of its divisors is an integer number (8018698639).

Almost surely, 2^102111000212 is an apocalyptic number.

It is an amenable number.

102111000212 is a deficient number, since it is larger than the sum of its proper divisors (90337767124).

102111000212 is a wasteful number, since it uses less digits than its factorization.

102111000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89867 (or 89865 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102111000212 its reverse (212000111201), we get a palindrome (314111111413).

The spelling of 102111000212 in words is "one hundred two billion, one hundred eleven million, two hundred twelve", and thus it is an aban number.