121312244 has 6 divisors (see below), whose sum is σ = 212296434. Its totient is φ = 60656120.

The previous prime is 121312229. The next prime is 121312253. The reversal of 121312244 is 442213121.

It can be written as a sum of positive squares in only one way, i.e., 111936400 + 9375844 = 10580^2 + 3062^2 .

It is a super-3 number, since 3×121312244³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15164027 + ... + 15164034.

It is an arithmetic number, because the mean of its divisors is an integer number (35382739).

Almost surely, 2^121312244 is an apocalyptic number.

It is an amenable number.

121312244 is a deficient number, since it is larger than the sum of its proper divisors (90984190).

121312244 is a wasteful number, since it uses less digits than its factorization.

121312244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30328065 (or 30328063 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 121312244 is about 11014.1837645828. The cubic root of 121312244 is about 495.0338296099.

Adding to 121312244 its reverse (442213121), we get a palindrome (563525365).

The spelling of 121312244 in words is "one hundred twenty-one million, three hundred twelve thousand, two hundred forty-four".