121544122 has 16 divisors (see below), whose sum is σ = 208541952. Its totient is φ = 52045200.

The previous prime is 121544099. The next prime is 121544123. The reversal of 121544122 is 221445121.

It is a junction number, because it is equal to n+sod(n) for n = 121544093 and 121544102.

It is not an unprimeable number, because it can be changed into a prime (121544123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16872 + ... + 22972.

It is an arithmetic number, because the mean of its divisors is an integer number (13033872).

Almost surely, 2^121544122 is an apocalyptic number.

121544122 is a deficient number, since it is larger than the sum of its proper divisors (86997830).

121544122 is a wasteful number, since it uses less digits than its factorization.

121544122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7533.

The product of its digits is 640, while the sum is 22.

The square root of 121544122 is about 11024.7050754204. The cubic root of 121544122 is about 495.3490338373.

Adding to 121544122 its reverse (221445121), we get a palindrome (342989243).

Subtracting 121544122 from its reverse (221445121), we obtain a palindrome (99900999).

The spelling of 121544122 in words is "one hundred twenty-one million, five hundred forty-four thousand, one hundred twenty-two".