10421201040 has 120 divisors (see below), whose sum is σ = 33458775168. Its totient is φ = 2683107840.

The previous prime is 10421200987. The next prime is 10421201053. The reversal of 10421201040 is 4010212401.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×10421201040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176025 + ... + 227655.

Almost surely, 2^10421201040 is an apocalyptic number.

10421201040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10421201040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16729387584).

10421201040 is an abundant number, since it is smaller than the sum of its proper divisors (23037574128).

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

10421201040 is a wasteful number, since it uses less digits than its factorization.

10421201040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51705 (or 51670 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10421201040 its reverse (4010212401), we get a palindrome (14431413441).

The spelling of 10421201040 in words is "ten billion, four hundred twenty-one million, two hundred one thousand, forty".