102040144212 has 24 divisors (see below), whose sum is σ = 238141724800. Its totient is φ = 34006516416.

The previous prime is 102040144183. The next prime is 102040144229. The reversal of 102040144212 is 212441040201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796012 + ... + 915267.

Almost surely, 2^102040144212 is an apocalyptic number.

102040144212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102040144212 is an abundant number, since it is smaller than the sum of its proper divisors (136101580588).

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

102040144212 is a wasteful number, since it uses less digits than its factorization.

102040144212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716255 (or 1716253 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102040144212 its reverse (212441040201), we get a palindrome (314481184413).

The spelling of 102040144212 in words is "one hundred two billion, forty million, one hundred forty-four thousand, two hundred twelve".