122051204211 has 4 divisors (see below), whose sum is σ = 162734938952. Its totient is φ = 81367469472.

The previous prime is 122051204203. The next prime is 122051204213. The reversal of 122051204211 is 112402150221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122051204211 - 2³ = 122051204203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122051204213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20341867366 + ... + 20341867371.

It is an arithmetic number, because the mean of its divisors is an integer number (40683734738).

Almost surely, 2^122051204211 is an apocalyptic number.

122051204211 is a deficient number, since it is larger than the sum of its proper divisors (40683734741).

122051204211 is an equidigital number, since it uses as much as digits as its factorization.

122051204211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40683734740.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 122051204211 its reverse (112402150221), we get a palindrome (234453354432).

The spelling of 122051204211 in words is "one hundred twenty-two billion, fifty-one million, two hundred four thousand, two hundred eleven".