151225110121 has 16 divisors (see below), whose sum is σ = 160844549904. Its totient is φ = 141686800384.

The previous prime is 151225110119. The next prime is 151225110131. The reversal of 151225110121 is 121011522151.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 21707896896 + 129517213225 = 147336^2 + 359885^2 .

It is a cyclic number.

It is not a de Polignac number, because 151225110121 - 2¹ = 151225110119 is a prime.

It is a super-2 number, since 2×151225110121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151225110092 and 151225110101.

It is not an unprimeable number, because it can be changed into a prime (151225110131) 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, 7561491 + ... + 7581463.

It is an arithmetic number, because the mean of its divisors is an integer number (10052784369).

Almost surely, 2^151225110121 is an apocalyptic number.

It is an amenable number.

151225110121 is a deficient number, since it is larger than the sum of its proper divisors (9619439783).

151225110121 is a wasteful number, since it uses less digits than its factorization.

151225110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980.

The product of its (nonzero) digits is 200, while the sum is 22.

Adding to 151225110121 its reverse (121011522151), we get a palindrome (272236632272).

The spelling of 151225110121 in words is "one hundred fifty-one billion, two hundred twenty-five million, one hundred ten thousand, one hundred twenty-one".