102012120210000 has 1600 divisors, whose sum is σ = 454103691503616. Its totient is φ = 19037721600000.

The previous prime is 102012120209977. The next prime is 102012120210001. The reversal of 102012120210000 is 12021210201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012120210001) 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 319 ways as a sum of consecutive naturals, for example, 1111064095 + ... + 1111155905.

Almost surely, 2^{102012120210000} is an apocalyptic number.

102012120210000 is a gapful number since it is divisible by the number (10) 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 102012120210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227051845751808).

102012120210000 is an abundant number, since it is smaller than the sum of its proper divisors (352091571293616).

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

102012120210000 is a wasteful number, since it uses less digits than its factorization.

102012120210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91910 (or 91889 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102012120210000 its reverse (12021210201), we get a palindrome (102024141420201).

The spelling of 102012120210000 in words is "one hundred two trillion, twelve billion, one hundred twenty million, two hundred ten thousand".