2211222001 has 16 divisors (see below), whose sum is σ = 2385025920. Its totient is φ = 2045070720.

The previous prime is 2211221989. The next prime is 2211222029. The reversal of 2211222001 is 1002221122.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211222031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69421 + ... + 96133.

It is an arithmetic number, because the mean of its divisors is an integer number (149064120).

Almost surely, 2^2211222001 is an apocalyptic number.

It is an amenable number.

2211222001 is a deficient number, since it is larger than the sum of its proper divisors (173803919).

2211222001 is a wasteful number, since it uses less digits than its factorization.

2211222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26856.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2211222001 is about 47023.6323671407. The cubic root of 2211222001 is about 1302.7990971959.

Adding to 2211222001 its reverse (1002221122), we get a palindrome (3213443123).

The spelling of 2211222001 in words is "two billion, two hundred eleven million, two hundred twenty-two thousand, one".