102012330111220 has 48 divisors (see below), whose sum is σ = 226871066131920. Its totient is φ = 38397251487744.

The previous prime is 102012330111217. The next prime is 102012330111227. The reversal of 102012330111220 is 22111033210201.

It can be written as a sum of positive squares in 8 ways, for example, as 354555938916 + 101657774172304 = 595446^2 + 10082548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012330111227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27099315 + ... + 30633274.

It is an arithmetic number, because the mean of its divisors is an integer number (4726480544415).

Almost surely, 2^{102012330111220} is an apocalyptic number.

102012330111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012330111220 is an abundant number, since it is smaller than the sum of its proper divisors (124858736020700).

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

102012330111220 is a wasteful number, since it uses less digits than its factorization.

102012330111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57737812 (or 57737810 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102012330111220 its reverse (22111033210201), we get a palindrome (124123363321421).

The spelling of 102012330111220 in words is "one hundred two trillion, twelve billion, three hundred thirty million, one hundred eleven thousand, two hundred twenty".