2102010455440 has 120 divisors (see below), whose sum is σ = 5817291955200. Its totient is φ = 703929026304.

The previous prime is 2102010455431. The next prime is 2102010455449. The reversal of 2102010455440 is 445540102012.

It is an interprime number because it is at equal distance from previous prime (2102010455431) and next prime (2102010455449).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2102010455399 and 2102010455408.

It is not an unprimeable number, because it can be changed into a prime (2102010455449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6066640 + ... + 6403759.

It is an arithmetic number, because the mean of its divisors is an integer number (48477432960).

Almost surely, 2^{2102010455440} is an apocalyptic number.

2102010455440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102010455440 is an abundant number, since it is smaller than the sum of its proper divisors (3715281499760).

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

2102010455440 is a wasteful number, since it uses less digits than its factorization.

2102010455440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12470469 (or 12470456 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 2102010455440 its reverse (445540102012), we get a palindrome (2547550557452).

The spelling of 2102010455440 in words is "two trillion, one hundred two billion, ten million, four hundred fifty-five thousand, four hundred forty".