100103111203220 has 12 divisors (see below), whose sum is σ = 210216533526804. Its totient is φ = 40041244481280.

The previous prime is 100103111203213. The next prime is 100103111203247. The reversal of 100103111203220 is 22302111301001.

It can be written as a sum of positive squares in 2 ways, for example, as 76682176730896 + 23420934472324 = 8756836^2 + 4839518^2 .

It is a super-2 number, since 2×100103111203220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502577780061 + ... + 2502577780100.

It is an arithmetic number, because the mean of its divisors is an integer number (17518044460567).

Almost surely, 2^{100103111203220} is an apocalyptic number.

100103111203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100103111203220 is an abundant number, since it is smaller than the sum of its proper divisors (110113422323584).

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

100103111203220 is a wasteful number, since it uses less digits than its factorization.

100103111203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005155560170 (or 5005155560168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100103111203220 its reverse (22302111301001), we get a palindrome (122405222504221).

The spelling of 100103111203220 in words is "one hundred trillion, one hundred three billion, one hundred eleven million, two hundred three thousand, two hundred twenty".