22131221352104 has 32 divisors (see below), whose sum is σ = 42479680837440. Its totient is φ = 10803532118400.

The previous prime is 22131221352103. The next prime is 22131221352127. The reversal of 22131221352104 is 40125312213122.

It is not an unprimeable number, because it can be changed into a prime (22131221352101) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 13317692 + ... + 14887019.

It is an arithmetic number, because the mean of its divisors is an integer number (1327490026170).

Almost surely, 2^{22131221352104} is an apocalyptic number.

It is an amenable number.

22131221352104 is a deficient number, since it is larger than the sum of its proper divisors (20348459485336).

22131221352104 is a wasteful number, since it uses less digits than its factorization.

22131221352104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28207041 (or 28207037 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 22131221352104 its reverse (40125312213122), we get a palindrome (62256533565226).

The spelling of 22131221352104 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred twenty-one million, three hundred fifty-two thousand, one hundred four".