100420221002144 has 24 divisors (see below), whose sum is σ = 197704335306240. Its totient is φ = 50209596162496.

The previous prime is 100420221002113. The next prime is 100420221002149. The reversal of 100420221002144 is 441200122024001.

It is a super-2 number, since 2×100420221002144² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100420221002149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12890714 + ... + 19157529.

It is an arithmetic number, because the mean of its divisors is an integer number (8237680637760).

Almost surely, 2^{100420221002144} is an apocalyptic number.

It is an amenable number.

100420221002144 is a deficient number, since it is larger than the sum of its proper divisors (97284114304096).

100420221002144 is an equidigital number, since it uses as much as digits as its factorization.

100420221002144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32146172 (or 32146164 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 100420221002144 its reverse (441200122024001), we get a palindrome (541620343026145).

The spelling of 100420221002144 in words is "one hundred trillion, four hundred twenty billion, two hundred twenty-one million, two thousand, one hundred forty-four".