20125230212 has 6 divisors (see below), whose sum is σ = 35219152878. Its totient is φ = 10062615104.

The previous prime is 20125230113. The next prime is 20125230233. The reversal of 20125230212 is 21203252102.

It can be written as a sum of positive squares in only one way, i.e., 10902701056 + 9222529156 = 104416^2 + 96034^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515653773 + ... + 2515653780.

It is an arithmetic number, because the mean of its divisors is an integer number (5869858813).

Almost surely, 2^20125230212 is an apocalyptic number.

It is an amenable number.

20125230212 is a deficient number, since it is larger than the sum of its proper divisors (15093922666).

20125230212 is a wasteful number, since it uses less digits than its factorization.

20125230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031307557 (or 5031307555 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20125230212 its reverse (21203252102), we get a palindrome (41328482314).

The spelling of 20125230212 in words is "twenty billion, one hundred twenty-five million, two hundred thirty thousand, two hundred twelve".