102112222212 has 384 divisors, whose sum is σ = 366927052800. Its totient is φ = 23691916800.

The previous prime is 102112222189. The next prime is 102112222217. The reversal of 102112222212 is 212222211201.

It is a happy number.

102112222212 is a `hidden beast` number, since 10 + 211 + 222 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102112222217) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3336114 + ... + 3366582.

It is an arithmetic number, because the mean of its divisors is an integer number (955539200).

Almost surely, 2^102112222212 is an apocalyptic number.

102112222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102112222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183463526400).

102112222212 is an abundant number, since it is smaller than the sum of its proper divisors (264814830588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102112222212 is a wasteful number, since it uses less digits than its factorization.

102112222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30544 (or 30536 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102112222212 its reverse (212222211201), we get a palindrome (314334433413).

The spelling of 102112222212 in words is "one hundred two billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twelve".