22201001011212 has 12 divisors (see below), whose sum is σ = 51802335692856. Its totient is φ = 7400333670400.

The previous prime is 22201001011193. The next prime is 22201001011223. The reversal of 22201001011212 is 21211010010222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22201001011191 and 22201001011200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925041708789 + ... + 925041708812.

It is an arithmetic number, because the mean of its divisors is an integer number (4316861307738).

Almost surely, 2^{22201001011212} is an apocalyptic number.

It is an amenable number.

22201001011212 is an abundant number, since it is smaller than the sum of its proper divisors (29601334681644).

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

22201001011212 is a wasteful number, since it uses less digits than its factorization.

22201001011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850083417608 (or 1850083417606 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22201001011212 its reverse (21211010010222), we get a palindrome (43412011021434).

The spelling of 22201001011212 in words is "twenty-two trillion, two hundred one billion, one million, eleven thousand, two hundred twelve".