151721301212 has 12 divisors (see below), whose sum is σ = 285936298536. Its totient is φ = 70025215920.

The previous prime is 151721301167. The next prime is 151721301223. The reversal of 151721301212 is 212103127151.

It is a happy number.

151721301212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458858614 + ... + 1458858717.

It is an arithmetic number, because the mean of its divisors is an integer number (23828024878).

Almost surely, 2^151721301212 is an apocalyptic number.

It is an amenable number.

151721301212 is a deficient number, since it is larger than the sum of its proper divisors (134214997324).

151721301212 is a wasteful number, since it uses less digits than its factorization.

151721301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917717348 (or 2917717346 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 151721301212 its reverse (212103127151), we get a palindrome (363824428363).

The spelling of 151721301212 in words is "one hundred fifty-one billion, seven hundred twenty-one million, three hundred one thousand, two hundred twelve".