40000212221012 has 6 divisors (see below), whose sum is σ = 70000371386778. Its totient is φ = 20000106110504.

The previous prime is 40000212220949. The next prime is 40000212221029. The reversal of 40000212221012 is 21012221200004.

It can be written as a sum of positive squares in only one way, i.e., 31799629261456 + 8200582959556 = 5639116^2 + 2863666^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000026527623 + ... + 5000026527630.

It is an arithmetic number, because the mean of its divisors is an integer number (11666728564463).

Almost surely, 2^{40000212221012} is an apocalyptic number.

It is an amenable number.

40000212221012 is a deficient number, since it is larger than the sum of its proper divisors (30000159165766).

40000212221012 is a wasteful number, since it uses less digits than its factorization.

40000212221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000053055257 (or 10000053055255 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 40000212221012 its reverse (21012221200004), we get a palindrome (61012433421016).

The spelling of 40000212221012 in words is "forty trillion, two hundred twelve million, two hundred twenty-one thousand, twelve".