151311465221 has 16 divisors (see below), whose sum is σ = 173430616320. Its totient is φ = 129318351360.

The previous prime is 151311465139. The next prime is 151311465233. The reversal of 151311465221 is 122564113151.

It is a cyclic number.

It is not a de Polignac number, because 151311465221 - 2¹⁸ = 151311203077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151311465121) 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, 9988565 + ... + 10003701.

It is an arithmetic number, because the mean of its divisors is an integer number (10839413520).

Almost surely, 2^151311465221 is an apocalyptic number.

It is an amenable number.

151311465221 is a deficient number, since it is larger than the sum of its proper divisors (22119151099).

151311465221 is a wasteful number, since it uses less digits than its factorization.

151311465221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19204.

The product of its digits is 7200, while the sum is 32.

Adding to 151311465221 its reverse (122564113151), we get a palindrome (273875578372).

The spelling of 151311465221 in words is "one hundred fifty-one billion, three hundred eleven million, four hundred sixty-five thousand, two hundred twenty-one".