21124242110 has 16 divisors (see below), whose sum is σ = 38026530432. Its totient is φ = 8449053600.

The previous prime is 21124242101. The next prime is 21124242121. The reversal of 21124242110 is 1124242112.

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, 71120 + ... + 217500.

It is an arithmetic number, because the mean of its divisors is an integer number (2376658152).

Almost surely, 2^21124242110 is an apocalyptic number.

21124242110 is a deficient number, since it is larger than the sum of its proper divisors (16902288322).

21124242110 is a wasteful number, since it uses less digits than its factorization.

21124242110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160819.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21124242110 its reverse (1124242112), we get a palindrome (22248484222).

It can be divided in two parts, 211242 and 42110, that added together give a palindrome (253352).

The spelling of 21124242110 in words is "twenty-one billion, one hundred twenty-four million, two hundred forty-two thousand, one hundred ten".