20124024212 has 12 divisors (see below), whose sum is σ = 35218153236. Its totient is φ = 10061694720.

The previous prime is 20124024187. The next prime is 20124024223. The reversal of 20124024212 is 21242042102.

It can be written as a sum of positive squares in 2 ways, for example, as 15280420996 + 4843603216 = 123614^2 + 69596^2 .

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, 117668 + ... + 232580.

It is an arithmetic number, because the mean of its divisors is an integer number (2934846103).

Almost surely, 2^20124024212 is an apocalyptic number.

It is an amenable number.

20124024212 is a deficient number, since it is larger than the sum of its proper divisors (15094129024).

20124024212 is a wasteful number, since it uses less digits than its factorization.

20124024212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158698 (or 158696 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20124024212 its reverse (21242042102), we get a palindrome (41366066314).

The spelling of 20124024212 in words is "twenty billion, one hundred twenty-four million, twenty-four thousand, two hundred twelve".