22155356 has 12 divisors (see below), whose sum is σ = 39239592. Its totient is φ = 10944048.

The previous prime is 22155317. The next prime is 22155361. The reversal of 22155356 is 65355122.

It is a happy number.

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, 33035 + ... + 33698.

It is an arithmetic number, because the mean of its divisors is an integer number (3269966).

Almost surely, 2^22155356 is an apocalyptic number.

It is an amenable number.

22155356 is a deficient number, since it is larger than the sum of its proper divisors (17084236).

22155356 is a wasteful number, since it uses less digits than its factorization.

22155356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66820 (or 66818 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 22155356 is about 4706.9476308963. The cubic root of 22155356 is about 280.8619526835.

The spelling of 22155356 in words is "twenty-two million, one hundred fifty-five thousand, three hundred fifty-six".