205025442143212 has 24 divisors (see below), whose sum is σ = 360483213625920. Its totient is φ = 102030886318080.

The previous prime is 205025442143191. The next prime is 205025442143261. The reversal of 205025442143212 is 212341244520502.

It is a happy 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, 79742287 + ... + 82273222.

It is an arithmetic number, because the mean of its divisors is an integer number (15020133901080).

Almost surely, 2^{205025442143212} is an apocalyptic number.

It is an amenable number.

205025442143212 is a deficient number, since it is larger than the sum of its proper divisors (155457771482708).

205025442143212 is a wasteful number, since it uses less digits than its factorization.

205025442143212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162017001 (or 162016999 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 205025442143212 its reverse (212341244520502), we get a palindrome (417366686663714).

The spelling of 205025442143212 in words is "two hundred five trillion, twenty-five billion, four hundred forty-two million, one hundred forty-three thousand, two hundred twelve".