150221412031121 has 4 divisors (see below), whose sum is σ = 151178236311732. Its totient is φ = 149264587750512.

The previous prime is 150221412031099. The next prime is 150221412031139. The reversal of 150221412031121 is 121130214122051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43004478528400 + 107216933502721 = 6557780^2 + 10354561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150221412031121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150221412031021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478412140070 + ... + 478412140383.

It is an arithmetic number, because the mean of its divisors is an integer number (37794559077933).

Almost surely, 2^{150221412031121} is an apocalyptic number.

It is an amenable number.

150221412031121 is a deficient number, since it is larger than the sum of its proper divisors (956824280611).

150221412031121 is an equidigital number, since it uses as much as digits as its factorization.

150221412031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956824280610.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 150221412031121 its reverse (121130214122051), we get a palindrome (271351626153172).

The spelling of 150221412031121 in words is "one hundred fifty trillion, two hundred twenty-one billion, four hundred twelve million, thirty-one thousand, one hundred twenty-one".