220100222001 has 16 divisors (see below), whose sum is σ = 320189929920. Its totient is φ = 133375677120.

The previous prime is 220100221997. The next prime is 220100222107. The reversal of 220100222001 is 100222001022.

It is not a de Polignac number, because 220100222001 - 2² = 220100221997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220100222701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215070 + ... + 697463.

It is an arithmetic number, because the mean of its divisors is an integer number (20011870620).

Almost surely, 2^220100222001 is an apocalyptic number.

It is an amenable number.

220100222001 is a deficient number, since it is larger than the sum of its proper divisors (100089707919).

220100222001 is a wasteful number, since it uses less digits than its factorization.

220100222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919856.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220100222001 its reverse (100222001022), we get a palindrome (320322223023).

The spelling of 220100222001 in words is "two hundred twenty billion, one hundred million, two hundred twenty-two thousand, one".