220211022211221 has 8 divisors (see below), whose sum is σ = 298428051958624. Its totient is φ = 144400670302320.

The previous prime is 220211022211091. The next prime is 220211022211259. The reversal of 220211022211221 is 122112220112022.

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

It is not a de Polignac number, because 220211022211221 - 2⁹ = 220211022210709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211022211291) 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, 601669459411 + ... + 601669459776.

It is an arithmetic number, because the mean of its divisors is an integer number (37303506494828).

Almost surely, 2^{220211022211221} is an apocalyptic number.

It is an amenable number.

220211022211221 is a deficient number, since it is larger than the sum of its proper divisors (78217029747403).

220211022211221 is a wasteful number, since it uses less digits than its factorization.

220211022211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203338919251.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220211022211221 its reverse (122112220112022), we get a palindrome (342323242323243).

The spelling of 220211022211221 in words is "two hundred twenty trillion, two hundred eleven billion, twenty-two million, two hundred eleven thousand, two hundred twenty-one".