150011712221 has 8 divisors (see below), whose sum is σ = 176972342784. Its totient is φ = 124433678160.

The previous prime is 150011712181. The next prime is 150011712229. The reversal of 150011712221 is 122217110051.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150011712221 - 2⁶ = 150011712157 is a prime.

It is a super-2 number, since 2×150011712221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150011712229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345648890 + ... + 345649323.

It is an arithmetic number, because the mean of its divisors is an integer number (22121542848).

Almost surely, 2^150011712221 is an apocalyptic number.

It is an amenable number.

150011712221 is a deficient number, since it is larger than the sum of its proper divisors (26960630563).

150011712221 is an equidigital number, since it uses as much as digits as its factorization.

150011712221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691298251.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 150011712221 its reverse (122217110051), we get a palindrome (272228822272).

The spelling of 150011712221 in words is "one hundred fifty billion, eleven million, seven hundred twelve thousand, two hundred twenty-one".