187212110212 has 6 divisors (see below), whose sum is σ = 327621192878. Its totient is φ = 93606055104.

The previous prime is 187212110201. The next prime is 187212110279. The reversal of 187212110212 is 212011212781.

It can be written as a sum of positive squares in only one way, i.e., 114287268096 + 72924842116 = 338064^2 + 270046^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23401513773 + ... + 23401513780.

Almost surely, 2^187212110212 is an apocalyptic number.

It is an amenable number.

187212110212 is a deficient number, since it is larger than the sum of its proper divisors (140409082666).

187212110212 is a wasteful number, since it uses less digits than its factorization.

187212110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46803027557 (or 46803027555 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 187212110212 its reverse (212011212781), we get a palindrome (399223322993).

The spelling of 187212110212 in words is "one hundred eighty-seven billion, two hundred twelve million, one hundred ten thousand, two hundred twelve".