74221052422531 has 16 divisors (see below), whose sum is σ = 87592907243520. Its totient is φ = 61542936966240.

The previous prime is 74221052422529. The next prime is 74221052422537. The reversal of 74221052422531 is 13522425012247.

It is a cyclic number.

It is not a de Polignac number, because 74221052422531 - 2¹ = 74221052422529 is a prime.

It is a super-2 number, since 2×74221052422531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74221052422537) 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, 63062716 + ... + 64228873.

It is an arithmetic number, because the mean of its divisors is an integer number (5474556702720).

Almost surely, 2^{74221052422531} is an apocalyptic number.

74221052422531 is a deficient number, since it is larger than the sum of its proper divisors (13371854820989).

74221052422531 is a wasteful number, since it uses less digits than its factorization.

74221052422531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127294314.

The product of its (nonzero) digits is 268800, while the sum is 40.

Adding to 74221052422531 its reverse (13522425012247), we get a palindrome (87743477434778).

The spelling of 74221052422531 in words is "seventy-four trillion, two hundred twenty-one billion, fifty-two million, four hundred twenty-two thousand, five hundred thirty-one".