20225123502130 has 8 divisors (see below), whose sum is σ = 36405222303852. Its totient is φ = 8090049400848.

The previous prime is 20225123502121. The next prime is 20225123502131. The reversal of 20225123502130 is 3120532152202.

It can be written as a sum of positive squares in 2 ways, for example, as 18041706487809 + 2183417014321 = 4247553^2 + 1477639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20225123502130² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20225123502131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011256175097 + ... + 1011256175116.

Almost surely, 2^{20225123502130} is an apocalyptic number.

20225123502130 is a deficient number, since it is larger than the sum of its proper divisors (16180098801722).

20225123502130 is a wasteful number, since it uses less digits than its factorization.

20225123502130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022512350220.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20225123502130 its reverse (3120532152202), we get a palindrome (23345655654332).

The spelling of 20225123502130 in words is "twenty trillion, two hundred twenty-five billion, one hundred twenty-three million, five hundred two thousand, one hundred thirty".