221022202211001 has 24 divisors (see below), whose sum is σ = 322186840564160. Its totient is φ = 145994681187936.

The previous prime is 221022202210969. The next prime is 221022202211009. The reversal of 221022202211001 is 100112202220122.

It is a happy number.

221022202211001 is a `hidden beast` number, since 2 + 210 + 2 + 220 + 221 + 10 + 0 + 1 = 666.

It is not a de Polignac number, because 221022202211001 - 2⁵ = 221022202210969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022202211009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89670786 + ... + 92102628.

Almost surely, 2^{221022202211001} is an apocalyptic number.

It is an amenable number.

221022202211001 is a deficient number, since it is larger than the sum of its proper divisors (101164638353159).

221022202211001 is a wasteful number, since it uses less digits than its factorization.

221022202211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524605 (or 2524602 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221022202211001 its reverse (100112202220122), we get a palindrome (321134404431123).

The spelling of 221022202211001 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred two million, two hundred eleven thousand, one".