20124210210 has 32 divisors (see below), whose sum is σ = 52013344320. Its totient is φ = 4953651648.

The previous prime is 20124210191. The next prime is 20124210229. The reversal of 20124210210 is 1201242102.

It is an interprime number because it is at equal distance from previous prime (20124210191) and next prime (20124210229).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20124210210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25799880 + ... + 25800659.

It is an arithmetic number, because the mean of its divisors is an integer number (1625417010).

Almost surely, 2^20124210210 is an apocalyptic number.

20124210210 is an abundant number, since it is smaller than the sum of its proper divisors (31889134110).

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

20124210210 is a wasteful number, since it uses less digits than its factorization.

20124210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51600562.

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

Adding to 20124210210 its reverse (1201242102), we get a palindrome (21325452312).

The spelling of 20124210210 in words is "twenty billion, one hundred twenty-four million, two hundred ten thousand, two hundred ten".