22001002230012 has 72 divisors (see below), whose sum is σ = 55589409921024. Its totient is φ = 6769407767616.

The previous prime is 22001002230001. The next prime is 22001002230013. The reversal of 22001002230012 is 21003220010022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22001002229973 and 22001002230000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001002230013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182425243 + ... + 182545805.

It is an arithmetic number, because the mean of its divisors is an integer number (772075137792).

Almost surely, 2^{22001002230012} is an apocalyptic number.

It is an amenable number.

22001002230012 is an abundant number, since it is smaller than the sum of its proper divisors (33588407691012).

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

22001002230012 is a wasteful number, since it uses less digits than its factorization.

22001002230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210579 (or 210564 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22001002230012 its reverse (21003220010022), we get a palindrome (43004222240034).

The spelling of 22001002230012 in words is "twenty-two trillion, one billion, two million, two hundred thirty thousand, twelve".