100220220001001 has 4 divisors (see below), whose sum is σ = 100293857195604. Its totient is φ = 100146582806400.

The previous prime is 100220220000991. The next prime is 100220220001091. The reversal of 100220220001001 is 100100022022001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22184815925776 + 78035404075225 = 4710076^2 + 8833765^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220220001001 - 2⁶ = 100220220000937 is a prime.

It is a super-5 number, since 5×100220220001001⁵ (a number of 71 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220220001091) 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, 36818595260 + ... + 36818597981.

It is an arithmetic number, because the mean of its divisors is an integer number (25073464298901).

Almost surely, 2^{100220220001001} is an apocalyptic number.

It is an amenable number.

100220220001001 is a deficient number, since it is larger than the sum of its proper divisors (73637194603).

100220220001001 is an equidigital number, since it uses as much as digits as its factorization.

100220220001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73637194602.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100220220001001 its reverse (100100022022001), we get a palindrome (200320242023002).

The spelling of 100220220001001 in words is "one hundred trillion, two hundred twenty billion, two hundred twenty million, one thousand, one".