2233121312440 has 16 divisors (see below), whose sum is σ = 5024522953080. Its totient is φ = 893248524960.

The previous prime is 2233121312431. The next prime is 2233121312447. The reversal of 2233121312440 is 442131213322.

It is a junction number, because it is equal to n+sod(n) for n = 2233121312399 and 2233121312408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233121312447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27914016366 + ... + 27914016445.

Almost surely, 2^{2233121312440} is an apocalyptic number.

2233121312440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2233121312440 is an abundant number, since it is smaller than the sum of its proper divisors (2791401640640).

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

2233121312440 is a wasteful number, since it uses less digits than its factorization.

2233121312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55828032822 (or 55828032818 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2233121312440 its reverse (442131213322), we get a palindrome (2675252525762).

The spelling of 2233121312440 in words is "two trillion, two hundred thirty-three billion, one hundred twenty-one million, three hundred twelve thousand, four hundred forty".