220001200101 has 12 divisors (see below), whose sum is σ = 317881764460. Its totient is φ = 146620272960.

The previous prime is 220001200093. The next prime is 220001200121. The reversal of 220001200101 is 101002100022.

It can be written as a sum of positive squares in 2 ways, for example, as 88134171876 + 131867028225 = 296874^2 + 363135^2 .

It is not a de Polignac number, because 220001200101 - 2³ = 220001200093 is a prime.

It is a super-4 number, since 4×220001200101⁴ (a number of 46 digits) contains 4444 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001200121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3903280 + ... + 3959241.

Almost surely, 2^220001200101 is an apocalyptic number.

It is an amenable number.

220001200101 is a deficient number, since it is larger than the sum of its proper divisors (97880564359).

220001200101 is a wasteful number, since it uses less digits than its factorization.

220001200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7865636 (or 7865633 counting only the distinct ones).

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

Adding to 220001200101 its reverse (101002100022), we get a palindrome (321003300123).

The spelling of 220001200101 in words is "two hundred twenty billion, one million, two hundred thousand, one hundred one".