122220221201211 has 8 divisors (see below), whose sum is σ = 186240337068544. Its totient is φ = 69840126400680.

The previous prime is 122220221201209. The next prime is 122220221201213. The reversal of 122220221201211 is 112102122022221.

It is an interprime number because it is at equal distance from previous prime (122220221201209) and next prime (122220221201213).

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

It is not a de Polignac number, because 122220221201211 - 2¹ = 122220221201209 is a prime.

It is a super-3 number, since 3×122220221201211³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5820010533391 = 122220221201211 / (1 + 2 + 2 + 2 + 2 + 0 + 2 + 2 + 1 + 2 + 0 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220221201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2910005266675 + ... + 2910005266716.

It is an arithmetic number, because the mean of its divisors is an integer number (23280042133568).

Almost surely, 2^{122220221201211} is an apocalyptic number.

122220221201211 is a deficient number, since it is larger than the sum of its proper divisors (64020115867333).

122220221201211 is an equidigital number, since it uses as much as digits as its factorization.

122220221201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820010533401.

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

Adding to 122220221201211 its reverse (112102122022221), we get a palindrome (234322343223432).

The spelling of 122220221201211 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred eleven".