102112213124 has 24 divisors (see below), whose sum is σ = 191487548448. Its totient is φ = 47473854080.

The previous prime is 102112213121. The next prime is 102112213139. The reversal of 102112213124 is 421312211201.

102112213124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102112213096 and 102112213105.

It is not an unprimeable number, because it can be changed into a prime (102112213121) 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, 9040442 + ... + 9051729.

It is an arithmetic number, because the mean of its divisors is an integer number (7978647852).

Almost surely, 2^102112213124 is an apocalyptic number.

It is an amenable number.

102112213124 is a deficient number, since it is larger than the sum of its proper divisors (89375335324).

102112213124 is a wasteful number, since it uses less digits than its factorization.

102112213124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18092275 (or 18092273 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 102112213124 its reverse (421312211201), we get a palindrome (523424424325).

The spelling of 102112213124 in words is "one hundred two billion, one hundred twelve million, two hundred thirteen thousand, one hundred twenty-four".