10506221240 has 32 divisors (see below), whose sum is σ = 23642388000. Its totient is φ = 4201885824.

The previous prime is 10506221207. The next prime is 10506221263. The reversal of 10506221240 is 4212260501.

It is a happy number.

It is a super-2 number, since 2×10506221240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355346 + ... + 383774.

It is an arithmetic number, because the mean of its divisors is an integer number (738824625).

Almost surely, 2^10506221240 is an apocalyptic number.

10506221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10506221240 is an abundant number, since it is smaller than the sum of its proper divisors (13136166760).

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

10506221240 is a wasteful number, since it uses less digits than its factorization.

10506221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37679 (or 37675 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 10506221240 its reverse (4212260501), we get a palindrome (14718481741).

The spelling of 10506221240 in words is "ten billion, five hundred six million, two hundred twenty-one thousand, two hundred forty".