121262112 has 36 divisors (see below), whose sum is σ = 344839950. Its totient is φ = 40420608.

The previous prime is 121262069. The next prime is 121262129. The reversal of 121262112 is 211262121.

It can be written as a sum of positive squares in only one way, i.e., 80353296 + 40908816 = 8964^2 + 6396^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210237 + ... + 210812.

Almost surely, 2^121262112 is an apocalyptic number.

121262112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121262112 is an abundant number, since it is smaller than the sum of its proper divisors (223577838).

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

121262112 is a wasteful number, since it uses less digits than its factorization.

121262112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421065 (or 421054 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 121262112 is about 11011.9077366277. The cubic root of 121262112 is about 494.9656296919.

Subtracting 121262112 from its reverse (211262121), we obtain a palindrome (90000009).

The spelling of 121262112 in words is "one hundred twenty-one million, two hundred sixty-two thousand, one hundred twelve".