102012122112020 has 12 divisors (see below), whose sum is σ = 214225456435284. Its totient is φ = 40804848844800.

The previous prime is 102012122111971. The next prime is 102012122112023. The reversal of 102012122112020 is 20211221210201.

It can be written as a sum of positive squares in 2 ways, for example, as 14591192904964 + 87420929207056 = 3819842^2 + 9349916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102012122112020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012122112023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550303052781 + ... + 2550303052820.

It is an arithmetic number, because the mean of its divisors is an integer number (17852121369607).

Almost surely, 2^{102012122112020} is an apocalyptic number.

102012122112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012122112020 is an abundant number, since it is smaller than the sum of its proper divisors (112213334323264).

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

102012122112020 is a wasteful number, since it uses less digits than its factorization.

102012122112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100606105610 (or 5100606105608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102012122112020 its reverse (20211221210201), we get a palindrome (122223343322221).

The spelling of 102012122112020 in words is "one hundred two trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, twenty".