20012255230 has 16 divisors (see below), whose sum is σ = 39296792304. Its totient is φ = 7277183680.

The previous prime is 20012255209. The next prime is 20012255239. The reversal of 20012255230 is 3255221002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012255239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90964687 + ... + 90964906.

It is an arithmetic number, because the mean of its divisors is an integer number (2456049519).

Almost surely, 2^20012255230 is an apocalyptic number.

20012255230 is a deficient number, since it is larger than the sum of its proper divisors (19284537074).

20012255230 is a wasteful number, since it uses less digits than its factorization.

20012255230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181929611.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20012255230 its reverse (3255221002), we get a palindrome (23267476232).

The spelling of 20012255230 in words is "twenty billion, twelve million, two hundred fifty-five thousand, two hundred thirty".