121302122 has 8 divisors (see below), whose sum is σ = 182000196. Its totient is φ = 60635392.

The previous prime is 121302113. The next prime is 121302127. The reversal of 121302122 is 221203121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99221521 + 22080601 = 9961^2 + 4699^2 .

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 = 121302097 and 121302106.

It is not an unprimeable number, because it can be changed into a prime (121302127) 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, 9608 + ... + 18300.

Almost surely, 2^121302122 is an apocalyptic number.

121302122 is a deficient number, since it is larger than the sum of its proper divisors (60698074).

121302122 is an equidigital number, since it uses as much as digits as its factorization.

121302122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121302122 is about 11013.7242565810. The cubic root of 121302122 is about 495.0200610854.

Adding to 121302122 its reverse (221203121), we get a palindrome (342505243).

Subtracting 121302122 from its reverse (221203121), we obtain a palindrome (99900999).

The spelling of 121302122 in words is "one hundred twenty-one million, three hundred two thousand, one hundred twenty-two".