150221555512 has 32 divisors (see below), whose sum is σ = 325028620800. Its totient is φ = 63755609184.

The previous prime is 150221555501. The next prime is 150221555551. The reversal of 150221555512 is 215555122051.

It is a congruent 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, 13016212 + ... + 13027747.

It is an arithmetic number, because the mean of its divisors is an integer number (10157144400).

Almost surely, 2^150221555512 is an apocalyptic number.

It is an amenable number.

150221555512 is an abundant number, since it is smaller than the sum of its proper divisors (174807065288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150221555512 is a wasteful number, since it uses less digits than its factorization.

150221555512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26044075 (or 26044071 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 34.

Adding to 150221555512 its reverse (215555122051), we get a palindrome (365776677563).

The spelling of 150221555512 in words is "one hundred fifty billion, two hundred twenty-one million, five hundred fifty-five thousand, five hundred twelve".