10212124240 has 20 divisors (see below), whose sum is σ = 23743189044. Its totient is φ = 4084849664.

The previous prime is 10212124201. The next prime is 10212124277. The reversal of 10212124240 is 4242121201.

It can be written as a sum of positive squares in 2 ways, for example, as 2673717264 + 7538406976 = 51708^2 + 86824^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63825697 + ... + 63825856.

Almost surely, 2^10212124240 is an apocalyptic number.

10212124240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212124240 is an abundant number, since it is smaller than the sum of its proper divisors (13531064804).

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

10212124240 is a wasteful number, since it uses less digits than its factorization.

10212124240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127651566 (or 127651560 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10212124240 its reverse (4242121201), we get a palindrome (14454245441).

The spelling of 10212124240 in words is "ten billion, two hundred twelve million, one hundred twenty-four thousand, two hundred forty".