2215404044442 has 32 divisors (see below), whose sum is σ = 4923903916800. Its totient is φ = 738350442144.

The previous prime is 2215404044411. The next prime is 2215404044521. The reversal of 2215404044442 is 2444404045122.

2215404044442 is a `hidden beast` number, since 22 + 154 + 0 + 4 + 0 + 44 + 442 = 666.

It is a super-2 number, since 2×2215404044442² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215404044397 and 2215404044406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923267 + ... + 3602262.

It is an arithmetic number, because the mean of its divisors is an integer number (153871997400).

Almost surely, 2^{2215404044442} is an apocalyptic number.

2215404044442 is an abundant number, since it is smaller than the sum of its proper divisors (2708499872358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2215404044442 is a wasteful number, since it uses less digits than its factorization.

2215404044442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531827 (or 6531821 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 2215404044442 its reverse (2444404045122), we get a palindrome (4659808089564).

The spelling of 2215404044442 in words is "two trillion, two hundred fifteen billion, four hundred four million, forty-four thousand, four hundred forty-two".