121202240 has 28 divisors (see below), whose sum is σ = 288613596. Its totient is φ = 48480768.

The previous prime is 121202239. The next prime is 121202261. The reversal of 121202240 is 42202121.

It can be written as a sum of positive squares in 2 ways, for example, as 67502656 + 53699584 = 8216^2 + 7328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189059 + ... + 189698.

Almost surely, 2^121202240 is an apocalyptic number.

121202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202240 is an abundant number, since it is smaller than the sum of its proper divisors (167411356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121202240 is an equidigital number, since it uses as much as digits as its factorization.

121202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378774 (or 378764 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 121202240 is about 11009.1888892870. The cubic root of 121202240 is about 494.8841547770.

Adding to 121202240 its reverse (42202121), we get a palindrome (163404361).

The spelling of 121202240 in words is "one hundred twenty-one million, two hundred two thousand, two hundred forty".