122121106 has 4 divisors (see below), whose sum is σ = 183181662. Its totient is φ = 61060552.

The previous prime is 122121089. The next prime is 122121107. The reversal of 122121106 is 601121221.

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

It can be written as a sum of positive squares in only one way, i.e., 106193025 + 15928081 = 10305^2 + 3991^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122121106.

It is not an unprimeable number, because it can be changed into a prime (122121107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530275 + ... + 30530278.

Almost surely, 2^122121106 is an apocalyptic number.

122121106 is a deficient number, since it is larger than the sum of its proper divisors (61060556).

122121106 is an equidigital number, since it uses as much as digits as its factorization.

122121106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61060555.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 122121106 is about 11050.8418683827. The cubic root of 122121106 is about 496.1316231717.

Adding to 122121106 its reverse (601121221), we get a palindrome (723242327).

The spelling of 122121106 in words is "one hundred twenty-two million, one hundred twenty-one thousand, one hundred six".