220101212001 has 48 divisors (see below), whose sum is σ = 324247190400. Its totient is φ = 132703802880.

The previous prime is 220101211969. The next prime is 220101212047. The reversal of 220101212001 is 100212101022.

It is not a de Polignac number, because 220101212001 - 2⁵ = 220101211969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220101212801) 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 47 ways as a sum of consecutive naturals, for example, 84360985 + ... + 84363593.

It is an arithmetic number, because the mean of its divisors is an integer number (6755149800).

Almost surely, 2^220101212001 is an apocalyptic number.

It is an amenable number.

220101212001 is a deficient number, since it is larger than the sum of its proper divisors (104145978399).

220101212001 is a wasteful number, since it uses less digits than its factorization.

220101212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220101212001 its reverse (100212101022), we get a palindrome (320313313023).

The spelling of 220101212001 in words is "two hundred twenty billion, one hundred one million, two hundred twelve thousand, one".