122021211122 has 4 divisors (see below), whose sum is σ = 183031816686. Its totient is φ = 61010605560.

The previous prime is 122021211119. The next prime is 122021211149. The reversal of 122021211122 is 221112120221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221112120221 = 51719 ⋅4275259.

It can be written as a sum of positive squares in only one way, i.e., 121167344281 + 853866841 = 348091^2 + 29221^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122021211122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505302779 + ... + 30505302782.

Almost surely, 2^122021211122 is an apocalyptic number.

122021211122 is a deficient number, since it is larger than the sum of its proper divisors (61010605564).

122021211122 is an equidigital number, since it uses as much as digits as its factorization.

122021211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61010605563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021211122 its reverse (221112120221), we get a palindrome (343133331343).

Subtracting 122021211122 from its reverse (221112120221), we obtain a palindrome (99090909099).

The spelling of 122021211122 in words is "one hundred twenty-two billion, twenty-one million, two hundred eleven thousand, one hundred twenty-two".