10012012020120 has 512 divisors, whose sum is σ = 35379879321600. Its totient is φ = 2242129612800.

The previous prime is 10012012020107. The next prime is 10012012020139. The reversal of 10012012020120 is 2102021021001.

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

It is a junction number, because it is equal to n+sod(n) for n = 10012012020096 and 10012012020105.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 116144635 + ... + 116230805.

It is an arithmetic number, because the mean of its divisors is an integer number (69101326800).

Almost surely, 2^{10012012020120} is an apocalyptic number.

10012012020120 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 10012012020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17689939660800).

10012012020120 is an abundant number, since it is smaller than the sum of its proper divisors (25367867301480).

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

10012012020120 is a wasteful number, since it uses less digits than its factorization.

10012012020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86351 (or 86347 counting only the distinct ones).

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

Adding to 10012012020120 its reverse (2102021021001), we get a palindrome (12114033041121).

The spelling of 10012012020120 in words is "ten trillion, twelve billion, twelve million, twenty thousand, one hundred twenty".