22121001092 has 24 divisors (see below), whose sum is σ = 39675860952. Its totient is φ = 10785312000.

The previous prime is 22121001083. The next prime is 22121001107. The reversal of 22121001092 is 29010012122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3512221696 + 18608779396 = 59264^2 + 136414^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303842 + ... + 369542.

It is an arithmetic number, because the mean of its divisors is an integer number (1653160873).

Almost surely, 2^22121001092 is an apocalyptic number.

It is an amenable number.

22121001092 is a deficient number, since it is larger than the sum of its proper divisors (17554859860).

22121001092 is a wasteful number, since it uses less digits than its factorization.

22121001092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67799 (or 67797 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 22121001092 in words is "twenty-two billion, one hundred twenty-one million, one thousand, ninety-two".