102212223221112 has 128 divisors (see below), whose sum is σ = 271907641843200. Its totient is φ = 31928065602048.

The previous prime is 102212223221111. The next prime is 102212223221183. The reversal of 102212223221112 is 211122322212201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212223221111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12252453 + ... + 18829419.

It is an arithmetic number, because the mean of its divisors is an integer number (2124278451900).

Almost surely, 2^{102212223221112} is an apocalyptic number.

102212223221112 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 102212223221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135953820921600).

102212223221112 is an abundant number, since it is smaller than the sum of its proper divisors (169695418622088).

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

102212223221112 is a wasteful number, since it uses less digits than its factorization.

102212223221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577365 (or 6577361 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 102212223221112 its reverse (211122322212201), we get a palindrome (313334545433313).

The spelling of 102212223221112 in words is "one hundred two trillion, two hundred twelve billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred twelve".