102040212 has 36 divisors (see below), whose sum is σ = 246611456. Its totient is φ = 32837280.

The previous prime is 102040201. The next prime is 102040231. The reversal of 102040212 is 212040201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5037 + ... + 15147.

Almost surely, 2^102040212 is an apocalyptic number.

102040212 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 102040212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123305728).

102040212 is an abundant number, since it is smaller than the sum of its proper divisors (144571244).

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

102040212 is a wasteful number, since it uses less digits than its factorization.

102040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176 (or 10145 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 102040212 is about 10101.4955328407. The cubic root of 102040212 is about 467.2942646650.

Adding to 102040212 its reverse (212040201), we get a palindrome (314080413).

The spelling of 102040212 in words is "one hundred two million, forty thousand, two hundred twelve".