22201210021312 has 28 divisors (see below), whose sum is σ = 50349172727920. Its totient is φ = 9514804294656.

The previous prime is 22201210021273. The next prime is 22201210021379. The reversal of 22201210021312 is 21312001210222.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22201210021312.

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, 24778135737 + ... + 24778136632.

Almost surely, 2^{22201210021312} is an apocalyptic number.

It is an amenable number.

22201210021312 is an abundant number, since it is smaller than the sum of its proper divisors (28147962706608).

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

22201210021312 is an equidigital number, since it uses as much as digits as its factorization.

22201210021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49556272388 (or 49556272378 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22201210021312 its reverse (21312001210222), we get a palindrome (43513211231534).

The spelling of 22201210021312 in words is "twenty-two trillion, two hundred one billion, two hundred ten million, twenty-one thousand, three hundred twelve".