42000221212244 has 12 divisors (see below), whose sum is σ = 73500502738068. Its totient is φ = 21000077572800.

The previous prime is 42000221212223. The next prime is 42000221212283. The reversal of 42000221212244 is 44221212200024.

It can be written as a sum of positive squares in 2 ways, for example, as 10481406250000 + 31518814962244 = 3237500^2 + 5614162^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278067 + ... + 10576314.

It is an arithmetic number, because the mean of its divisors is an integer number (6125041894839).

Almost surely, 2^{42000221212244} is an apocalyptic number.

It is an amenable number.

42000221212244 is a deficient number, since it is larger than the sum of its proper divisors (31500281525824).

42000221212244 is a wasteful number, since it uses less digits than its factorization.

42000221212244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16516666 (or 16516664 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 42000221212244 its reverse (44221212200024), we get a palindrome (86221433412268).

The spelling of 42000221212244 in words is "forty-two trillion, two hundred twenty-one million, two hundred twelve thousand, two hundred forty-four".