100220001200001 has 6 divisors (see below), whose sum is σ = 144762223955570. Its totient is φ = 66813334133328.

The previous prime is 100220001199999. The next prime is 100220001200047. The reversal of 100220001200001 is 100002100022001.

It can be written as a sum of positive squares in only one way, i.e., 52507066622976 + 47712934577025 = 7246176^2 + 6907455^2 .

It is not a de Polignac number, because 100220001200001 - 2¹ = 100220001199999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11135555688889 = 100220001200001 / (1 + 0 + 0 + 2 + 2 + 0 + 0 + 0 + 1 + 2 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220001200401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5567777844436 + ... + 5567777844453.

Almost surely, 2^{100220001200001} is an apocalyptic number.

It is an amenable number.

100220001200001 is a deficient number, since it is larger than the sum of its proper divisors (44542222755569).

100220001200001 is a wasteful number, since it uses less digits than its factorization.

100220001200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11135555688895 (or 11135555688892 counting only the distinct ones).

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

Adding to 100220001200001 its reverse (100002100022001), we get a palindrome (200222101222002).

The spelling of 100220001200001 in words is "one hundred trillion, two hundred twenty billion, one million, two hundred thousand, one".