22332221012 has 6 divisors (see below), whose sum is σ = 39081386778. Its totient is φ = 11166110504.

The previous prime is 22332220979. The next prime is 22332221027. The reversal of 22332221012 is 21012223322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18024136516 + 4308084496 = 134254^2 + 65636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2791527623 + ... + 2791527630.

It is an arithmetic number, because the mean of its divisors is an integer number (6513564463).

Almost surely, 2^22332221012 is an apocalyptic number.

It is an amenable number.

22332221012 is a deficient number, since it is larger than the sum of its proper divisors (16749165766).

22332221012 is a wasteful number, since it uses less digits than its factorization.

22332221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583055257 (or 5583055255 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22332221012 its reverse (21012223322), we get a palindrome (43344444334).

The spelling of 22332221012 in words is "twenty-two billion, three hundred thirty-two million, two hundred twenty-one thousand, twelve".