42415750282221 has 12 divisors (see below), whose sum is σ = 62271575096380. Its totient is φ = 27813606742080.

The previous prime is 42415750282211. The next prime is 42415750282231. The reversal of 42415750282221 is 12228205751424.

42415750282221 is a `hidden beast` number, since 4 + 2 + 41 + 5 + 7 + 502 + 82 + 2 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (42415750282211) and next prime (42415750282231).

It can be written as a sum of positive squares in 2 ways, for example, as 17036371820196 + 25379378462025 = 4127514^2 + 5037795^2 .

It is not a de Polignac number, because 42415750282221 - 2¹⁰ = 42415750281197 is a prime.

It is a super-2 number, since 2×42415750282221² (a number of 28 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 (42415750282211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38630008816 + ... + 38630009913.

Almost surely, 2^{42415750282221} is an apocalyptic number.

It is an amenable number.

42415750282221 is a deficient number, since it is larger than the sum of its proper divisors (19855824814159).

42415750282221 is a wasteful number, since it uses less digits than its factorization.

42415750282221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77260018796 (or 77260018793 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 42415750282221 in words is "forty-two trillion, four hundred fifteen billion, seven hundred fifty million, two hundred eighty-two thousand, two hundred twenty-one".