221022220100001 has 16 divisors (see below), whose sum is σ = 298431164467200. Its totient is φ = 145480767960528.

The previous prime is 221022220099991. The next prime is 221022220100069. The reversal of 221022220100001 is 100001022220122.

It is not a de Polignac number, because 221022220100001 - 2⁶ = 221022220099937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221022220102001) 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, 8600020 + ... + 22715738.

It is an arithmetic number, because the mean of its divisors is an integer number (18651947779200).

Almost surely, 2^{221022220100001} is an apocalyptic number.

It is an amenable number.

221022220100001 is a deficient number, since it is larger than the sum of its proper divisors (77408944367199).

221022220100001 is a wasteful number, since it uses less digits than its factorization.

221022220100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14181868.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221022220100001 its reverse (100001022220122), we get a palindrome (321023242320123).

The spelling of 221022220100001 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty million, one hundred thousand, one".