151120412221 has 16 divisors (see below), whose sum is σ = 162796046400. Its totient is φ = 139756555008.

The previous prime is 151120412203. The next prime is 151120412273. The reversal of 151120412221 is 122214021151.

It is not a de Polignac number, because 151120412221 - 2¹¹ = 151120410173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151120412192 and 151120412201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151120415221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2242606 + ... + 2309008.

It is an arithmetic number, because the mean of its divisors is an integer number (10174752900).

Almost surely, 2^151120412221 is an apocalyptic number.

It is an amenable number.

151120412221 is a deficient number, since it is larger than the sum of its proper divisors (11675634179).

151120412221 is a wasteful number, since it uses less digits than its factorization.

151120412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68748.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 151120412221 its reverse (122214021151), we get a palindrome (273334433372).

The spelling of 151120412221 in words is "one hundred fifty-one billion, one hundred twenty million, four hundred twelve thousand, two hundred twenty-one".