121440201024 has 28 divisors (see below), whose sum is σ = 321310532384. Its totient is φ = 40480066944.

The previous prime is 121440201023. The next prime is 121440201041. The reversal of 121440201024 is 420102044121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121440201023) 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, 316250332 + ... + 316250715.

Almost surely, 2^121440201024 is an apocalyptic number.

It is an amenable number.

121440201024 is an abundant number, since it is smaller than the sum of its proper divisors (199870331360).

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

121440201024 is an equidigital number, since it uses as much as digits as its factorization.

121440201024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632501062 (or 632501052 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121440201024 its reverse (420102044121), we get a palindrome (541542245145).

The spelling of 121440201024 in words is "one hundred twenty-one billion, four hundred forty million, two hundred one thousand, twenty-four".