100012121012020 has 96 divisors (see below), whose sum is σ = 244887072030720. Its totient is φ = 33601231762560.

The previous prime is 100012121011993. The next prime is 100012121012081. The reversal of 100012121012020 is 20210121210001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26120130 + ... + 29703289.

It is an arithmetic number, because the mean of its divisors is an integer number (2550907000320).

Almost surely, 2^{100012121012020} is an apocalyptic number.

100012121012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012121012020 is an abundant number, since it is smaller than the sum of its proper divisors (144874951018700).

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

100012121012020 is a wasteful number, since it uses less digits than its factorization.

100012121012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55823693 (or 55823691 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100012121012020 its reverse (20210121210001), we get a palindrome (120222242222021).

The spelling of 100012121012020 in words is "one hundred trillion, twelve billion, one hundred twenty-one million, twelve thousand, twenty".