152612133221 has 2 divisors, whose sum is σ = 152612133222. Its totient is φ = 152612133220.

The previous prime is 152612133199. The next prime is 152612133263. The reversal of 152612133221 is 122331216251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146819248900 + 5792884321 = 383170^2 + 76111^2 .

It is a cyclic number.

It is not a de Polignac number, because 152612133221 - 2³⁰ = 151538391397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152612133721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76306066610 + 76306066611.

It is an arithmetic number, because the mean of its divisors is an integer number (76306066611).

Almost surely, 2^152612133221 is an apocalyptic number.

It is an amenable number.

152612133221 is a deficient number, since it is larger than the sum of its proper divisors (1).

152612133221 is an equidigital number, since it uses as much as digits as its factorization.

152612133221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

Adding to 152612133221 its reverse (122331216251), we get a palindrome (274943349472).

The spelling of 152612133221 in words is "one hundred fifty-two billion, six hundred twelve million, one hundred thirty-three thousand, two hundred twenty-one".