121502242 has 4 divisors (see below), whose sum is σ = 182253366. Its totient is φ = 60751120.

The previous prime is 121502239. The next prime is 121502243. The reversal of 121502242 is 242205121.

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., 112805641 + 8696601 = 10621^2 + 2949^2 .

It is a super-2 number, since 2×121502242² = 29525589622053128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121502243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30375559 + ... + 30375562.

Almost surely, 2^121502242 is an apocalyptic number.

121502242 is a deficient number, since it is larger than the sum of its proper divisors (60751124).

121502242 is an equidigital number, since it uses as much as digits as its factorization.

121502242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60751123.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 121502242 is about 11022.8055412404. The cubic root of 121502242 is about 495.2921337850.

Adding to 121502242 its reverse (242205121), we get a palindrome (363707363).

The spelling of 121502242 in words is "one hundred twenty-one million, five hundred two thousand, two hundred forty-two".