22140212104 has 8 divisors (see below), whose sum is σ = 41512897710. Its totient is φ = 11070106048.

The previous prime is 22140212057. The next prime is 22140212113. The reversal of 22140212104 is 40121204122.

It can be written as a sum of positive squares in only one way, i.e., 21755660004 + 384552100 = 147498^2 + 19610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383763249 + ... + 1383763264.

Almost surely, 2^22140212104 is an apocalyptic number.

It is an amenable number.

22140212104 is a deficient number, since it is larger than the sum of its proper divisors (19372685606).

22140212104 is a wasteful number, since it uses less digits than its factorization.

22140212104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767526519 (or 2767526515 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22140212104 its reverse (40121204122), we get a palindrome (62261416226).

The spelling of 22140212104 in words is "twenty-two billion, one hundred forty million, two hundred twelve thousand, one hundred four".