222611901 has 8 divisors (see below), whose sum is σ = 298782144. Its totient is φ = 147424800.

The previous prime is 222611887. The next prime is 222611911. The reversal of 222611901 is 109116222.

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

It is not a de Polignac number, because 222611901 - 2¹³ = 222603709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222611911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245256 + ... + 246161.

It is an arithmetic number, because the mean of its divisors is an integer number (37347768).

Almost surely, 2^222611901 is an apocalyptic number.

It is an amenable number.

222611901 is a deficient number, since it is larger than the sum of its proper divisors (76170243).

222611901 is a wasteful number, since it uses less digits than its factorization.

222611901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491571.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 222611901 is about 14920.1843487271. The cubic root of 222611901 is about 606.0607041979.

The spelling of 222611901 in words is "two hundred twenty-two million, six hundred eleven thousand, nine hundred one".