102030223212 has 192 divisors, whose sum is σ = 295916544000. Its totient is φ = 30212434944.

The previous prime is 102030223201. The next prime is 102030223219. The reversal of 102030223212 is 212322030201.

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 (102030223219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9657589 + ... + 9668147.

It is an arithmetic number, because the mean of its divisors is an integer number (1541232000).

Almost surely, 2^102030223212 is an apocalyptic number.

102030223212 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 102030223212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147958272000).

102030223212 is an abundant number, since it is smaller than the sum of its proper divisors (193886320788).

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

102030223212 is a wasteful number, since it uses less digits than its factorization.

102030223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885 (or 10877 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102030223212 its reverse (212322030201), we get a palindrome (314352253413).

The spelling of 102030223212 in words is "one hundred two billion, thirty million, two hundred twenty-three thousand, two hundred twelve".