150022801225721 has 4 divisors (see below), whose sum is σ = 150086451122532. Its totient is φ = 149959151328912.

The previous prime is 150022801225709. The next prime is 150022801225747. The reversal of 150022801225721 is 127522108220051.

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 94523117290000 + 55499683935721 = 9722300^2 + 7449811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150022801225721 is a prime.

It is a super-2 number, since 2×150022801225721² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150022801225621) 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, 31824944870 + ... + 31824949583.

It is an arithmetic number, because the mean of its divisors is an integer number (37521612780633).

Almost surely, 2^{150022801225721} is an apocalyptic number.

It is an amenable number.

150022801225721 is a deficient number, since it is larger than the sum of its proper divisors (63649896811).

150022801225721 is an equidigital number, since it uses as much as digits as its factorization.

150022801225721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63649896810.

The product of its (nonzero) digits is 44800, while the sum is 38.

Adding to 150022801225721 its reverse (127522108220051), we get a palindrome (277544909445772).

The spelling of 150022801225721 in words is "one hundred fifty trillion, twenty-two billion, eight hundred one million, two hundred twenty-five thousand, seven hundred twenty-one".