221154026 has 8 divisors (see below), whose sum is σ = 331794144. Its totient is φ = 110555980.

The previous prime is 221154019. The next prime is 221154061. The reversal of 221154026 is 620451122.

It is a happy number.

221154026 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221153992 and 221154010.

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, 15341 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (41474268).

Almost surely, 2^221154026 is an apocalyptic number.

221154026 is a deficient number, since it is larger than the sum of its proper divisors (110640118).

221154026 is a wasteful number, since it uses less digits than its factorization.

221154026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21036.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 221154026 is about 14871.2482999915. The cubic root of 221154026 is about 604.7347843752.

The spelling of 221154026 in words is "two hundred twenty-one million, one hundred fifty-four thousand, twenty-six".