1010121200440 has 32 divisors (see below), whose sum is σ = 2479388402160. Its totient is φ = 367316800000.

The previous prime is 1010121200419. The next prime is 1010121200447. The reversal of 1010121200440 is 440021210101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010121200447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147864561 + ... + 1147865440.

Almost surely, 2^{1010121200440} is an apocalyptic number.

1010121200440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010121200440 is an abundant number, since it is smaller than the sum of its proper divisors (1469267201720).

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

1010121200440 is a wasteful number, since it uses less digits than its factorization.

1010121200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295730023 (or 2295730019 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1010121200440 its reverse (440021210101), we get a palindrome (1450142410541).

The spelling of 1010121200440 in words is "one trillion, ten billion, one hundred twenty-one million, two hundred thousand, four hundred forty".