541221337215 has 96 divisors (see below), whose sum is σ = 1018748290560. Its totient is φ = 264218588928.

The previous prime is 541221337207. The next prime is 541221337219. The reversal of 541221337215 is 512733122145.

541221337215 is a `hidden beast` number, since 5 + 412 + 21 + 3 + 3 + 7 + 215 = 666.

It is not a de Polignac number, because 541221337215 - 2³ = 541221337207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 541221337215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541221337219) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78628164 + ... + 78635046.

It is an arithmetic number, because the mean of its divisors is an integer number (10611961360).

Almost surely, 2^541221337215 is an apocalyptic number.

541221337215 is a deficient number, since it is larger than the sum of its proper divisors (477526953345).

541221337215 is a wasteful number, since it uses less digits than its factorization.

541221337215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013 (or 8010 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The spelling of 541221337215 in words is "five hundred forty-one billion, two hundred twenty-one million, three hundred thirty-seven thousand, two hundred fifteen".