2267206121 has 4 divisors (see below), whose sum is σ = 2268013200. Its totient is φ = 2266399044.

The previous prime is 2267206091. The next prime is 2267206129. The reversal of 2267206121 is 1216027622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2267206121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2267206129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399311 + ... + 404948.

It is an arithmetic number, because the mean of its divisors is an integer number (567003300).

Almost surely, 2^2267206121 is an apocalyptic number.

It is an amenable number.

2267206121 is a deficient number, since it is larger than the sum of its proper divisors (807079).

2267206121 is an equidigital number, since it uses as much as digits as its factorization.

2267206121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807078.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2267206121 is about 47615.1879236027. The cubic root of 2267206121 is about 1313.7024256515.

The spelling of 2267206121 in words is "two billion, two hundred sixty-seven million, two hundred six thousand, one hundred twenty-one".