12101120240 has 40 divisors (see below), whose sum is σ = 30692843568. Its totient is φ = 4400407040.

The previous prime is 12101120231. The next prime is 12101120257. The reversal of 12101120240 is 4202110121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12101120240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6874757 + ... + 6876516.

Almost surely, 2^12101120240 is an apocalyptic number.

12101120240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101120240 is an abundant number, since it is smaller than the sum of its proper divisors (18591723328).

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

12101120240 is a wasteful number, since it uses less digits than its factorization.

12101120240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751297 (or 13751291 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12101120240 its reverse (4202110121), we get a palindrome (16303230361).

The spelling of 12101120240 in words is "twelve billion, one hundred one million, one hundred twenty thousand, two hundred forty".