121535122 has 8 divisors (see below), whose sum is σ = 182736972. Its totient is φ = 60622800.

The previous prime is 121535087. The next prime is 121535123. The reversal of 121535122 is 221535121.

It can be written as a sum of positive squares in 2 ways, for example, as 94692361 + 26842761 = 9731^2 + 5181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121535093 and 121535102.

It is not an unprimeable number, because it can be changed into a prime (121535123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71329 + ... + 73012.

Almost surely, 2^121535122 is an apocalyptic number.

121535122 is a deficient number, since it is larger than the sum of its proper divisors (61201850).

121535122 is a wasteful number, since it uses less digits than its factorization.

121535122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144764.

The product of its digits is 600, while the sum is 22.

The square root of 121535122 is about 11024.2968936799. The cubic root of 121535122 is about 495.3368071351.

Subtracting 121535122 from its reverse (221535121), we obtain a palindrome (99999999).

The spelling of 121535122 in words is "one hundred twenty-one million, five hundred thirty-five thousand, one hundred twenty-two".