100021012144 has 10 divisors (see below), whose sum is σ = 193790711060. Its totient is φ = 50010506064.

The previous prime is 100021012087. The next prime is 100021012183. The reversal of 100021012144 is 441210120001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 6251313259 = 100021012144 / (1 + 0 + 0 + 0 + 2 + 1 + 0 + 1 + 2 + 1 + 4 + 4).

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 as a sum of consecutive naturals, namely, 3125656614 + ... + 3125656645.

It is an arithmetic number, because the mean of its divisors is an integer number (19379071106).

Almost surely, 2^100021012144 is an apocalyptic number.

It is an amenable number.

100021012144 is a deficient number, since it is larger than the sum of its proper divisors (93769698916).

100021012144 is an equidigital number, since it uses as much as digits as its factorization.

100021012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251313267 (or 6251313261 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100021012144 its reverse (441210120001), we get a palindrome (541231132145).

The spelling of 100021012144 in words is "one hundred billion, twenty-one million, twelve thousand, one hundred forty-four".