100221144340 has 48 divisors (see below), whose sum is σ = 217304478720. Its totient is φ = 38786192640.

The previous prime is 100221144301. The next prime is 100221144343. The reversal of 100221144340 is 43441122001.

It is a happy number.

It is a super-2 number, since 2×100221144340² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221144343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3023376 + ... + 3056344.

It is an arithmetic number, because the mean of its divisors is an integer number (4527176640).

Almost surely, 2^100221144340 is an apocalyptic number.

100221144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221144340 is an abundant number, since it is smaller than the sum of its proper divisors (117083334380).

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

100221144340 is a wasteful number, since it uses less digits than its factorization.

100221144340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37912 (or 37910 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 100221144340 its reverse (43441122001), we get a palindrome (143662266341).

The spelling of 100221144340 in words is "one hundred billion, two hundred twenty-one million, one hundred forty-four thousand, three hundred forty".