122122210211211 has 8 divisors (see below), whose sum is σ = 186090986988544. Its totient is φ = 69784120120680.

The previous prime is 122122210211203. The next prime is 122122210211227. The reversal of 122122210211211 is 112112012221221.

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

It is not a de Polignac number, because 122122210211211 - 2³ = 122122210211203 is a prime.

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: 5815343343391 = 122122210211211 / (1 + 2 + 2 + 1 + 2 + 2 + 2 + 1 + 0 + 2 + 1 + 1 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122210219211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2907671671675 + ... + 2907671671716.

It is an arithmetic number, because the mean of its divisors is an integer number (23261373373568).

Almost surely, 2^{122122210211211} is an apocalyptic number.

122122210211211 is a deficient number, since it is larger than the sum of its proper divisors (63968776777333).

122122210211211 is an equidigital number, since it uses as much as digits as its factorization.

122122210211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815343343401.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122122210211211 its reverse (112112012221221), we get a palindrome (234234222432432).

The spelling of 122122210211211 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, two hundred ten million, two hundred eleven thousand, two hundred eleven".