221022212001 has 8 divisors (see below), whose sum is σ = 298426615680. Its totient is φ = 145482974832.

The previous prime is 221022211987. The next prime is 221022212017. The reversal of 221022212001 is 100212220122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221022212001 - 2³¹ = 218874728353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221022212051) 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 7 ways as a sum of consecutive naturals, for example, 466291350 + ... + 466291823.

It is an arithmetic number, because the mean of its divisors is an integer number (37303326960).

Almost surely, 2^221022212001 is an apocalyptic number.

It is an amenable number.

221022212001 is a deficient number, since it is larger than the sum of its proper divisors (77404403679).

221022212001 is an equidigital number, since it uses as much as digits as its factorization.

221022212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932583255.

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

Adding to 221022212001 its reverse (100212220122), we get a palindrome (321234432123).

The spelling of 221022212001 in words is "two hundred twenty-one billion, twenty-two million, two hundred twelve thousand, one".