122118011 has 4 divisors (see below), whose sum is σ = 122330232. Its totient is φ = 121905792.

The previous prime is 122117999. The next prime is 122118013. The reversal of 122118011 is 110811221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110811221 = 3557 ⋅31153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122118011 is a prime.

It is a super-2 number, since 2×122118011² = 29825617221192242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122118013) 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, 105245 + ... + 106398.

It is an arithmetic number, because the mean of its divisors is an integer number (30582558).

Almost surely, 2^122118011 is an apocalyptic number.

122118011 is a deficient number, since it is larger than the sum of its proper divisors (212221).

122118011 is an equidigital number, since it uses as much as digits as its factorization.

122118011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212220.

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 122118011 is about 11050.7018329154. The cubic root of 122118011 is about 496.1274318669.

Adding to 122118011 its reverse (110811221), we get a palindrome (232929232).

The spelling of 122118011 in words is "one hundred twenty-two million, one hundred eighteen thousand, eleven".