121238448 has 20 divisors (see below), whose sum is σ = 313199448. Its totient is φ = 40412800.

The previous prime is 121238437. The next prime is 121238459. The reversal of 121238448 is 844832121.

It is an interprime number because it is at equal distance from previous prime (121238437) and next prime (121238459).

It is a super-2 number, since 2×121238448² = 29397522546897408, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 1262853 + ... + 1262948.

Almost surely, 2^121238448 is an apocalyptic number.

It is an amenable number.

121238448 is an abundant number, since it is smaller than the sum of its proper divisors (191961000).

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

121238448 is a wasteful number, since it uses less digits than its factorization.

121238448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525812 (or 2525806 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 121238448 is about 11010.8332109791. The cubic root of 121238448 is about 494.9334304928.

The spelling of 121238448 in words is "one hundred twenty-one million, two hundred thirty-eight thousand, four hundred forty-eight".