100000200011220 has 72 divisors (see below), whose sum is σ = 303373068985896. Its totient is φ = 26663280095232.

The previous prime is 100000200011219. The next prime is 100000200011221. The reversal of 100000200011220 is 22110002000001.

It is an interprime number because it is at equal distance from previous prime (100000200011219) and next prime (100000200011221).

It can be written as a sum of positive squares in 4 ways, for example, as 59418382222224 + 40581817788996 = 7708332^2 + 6370386^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000200011221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34432957 + ... + 37224036.

Almost surely, 2^{100000200011220} is an apocalyptic number.

100000200011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000200011220 is an abundant number, since it is smaller than the sum of its proper divisors (203372868974676).

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

100000200011220 is a wasteful number, since it uses less digits than its factorization.

100000200011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71664761 (or 71664756 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100000200011220 its reverse (22110002000001), we get a palindrome (122110202011221).

The spelling of 100000200011220 in words is "one hundred trillion, two hundred million, eleven thousand, two hundred twenty".