20124210102 has 16 divisors (see below), whose sum is σ = 40314085680. Its totient is φ = 6697125792.

The previous prime is 20124210097. The next prime is 20124210151. The reversal of 20124210102 is 20101242102.

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, 2732077 + ... + 2739432.

It is an arithmetic number, because the mean of its divisors is an integer number (2519630355).

Almost surely, 2^20124210102 is an apocalyptic number.

20124210102 is an abundant number, since it is smaller than the sum of its proper divisors (20189875578).

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

20124210102 is a wasteful number, since it uses less digits than its factorization.

20124210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472127.

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

Adding to 20124210102 its reverse (20101242102), we get a palindrome (40225452204).

The spelling of 20124210102 in words is "twenty billion, one hundred twenty-four million, two hundred ten thousand, one hundred two".