122012211 has 4 divisors (see below), whose sum is σ = 162682952. Its totient is φ = 81341472.

The previous prime is 122012197. The next prime is 122012257. The reversal of 122012211 is 112210221.

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

It is not a de Polignac number, because 122012211 - 2⁷ = 122012083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122012291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20335366 + ... + 20335371.

It is an arithmetic number, because the mean of its divisors is an integer number (40670738).

Almost surely, 2^122012211 is an apocalyptic number.

122012211 is a deficient number, since it is larger than the sum of its proper divisors (40670741).

122012211 is an equidigital number, since it uses as much as digits as its factorization.

122012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40670740.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122012211 is about 11045.9137693538. The cubic root of 122012211 is about 495.9841129905.

Adding to 122012211 its reverse (112210221), we get a palindrome (234222432).

It can be divided in two parts, 1220 and 12211, that added together give a palindrome (13431).

The spelling of 122012211 in words is "one hundred twenty-two million, twelve thousand, two hundred eleven".