150221512240 has 40 divisors (see below), whose sum is σ = 353189358720. Its totient is φ = 59413449216.

The previous prime is 150221512211. The next prime is 150221512247. The reversal of 150221512240 is 42215122051.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (150221512247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10542144 + ... + 10556383.

It is an arithmetic number, because the mean of its divisors is an integer number (8829733968).

Almost surely, 2^150221512240 is an apocalyptic number.

150221512240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150221512240 is an abundant number, since it is smaller than the sum of its proper divisors (202967846480).

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

150221512240 is a wasteful number, since it uses less digits than its factorization.

150221512240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21098629 (or 21098623 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 150221512240 its reverse (42215122051), we get a palindrome (192436634291).

The spelling of 150221512240 in words is "one hundred fifty billion, two hundred twenty-one million, five hundred twelve thousand, two hundred forty".