222122220011 has 4 divisors (see below), whose sum is σ = 222125838312. Its totient is φ = 222118601712.

The previous prime is 222122219981. The next prime is 222122220049. The reversal of 222122220011 is 110022221222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222122220011 - 2⁶ = 222122219947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122220311) 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, 1715450 + ... + 1840383.

It is an arithmetic number, because the mean of its divisors is an integer number (55531459578).

Almost surely, 2^222122220011 is an apocalyptic number.

222122220011 is a deficient number, since it is larger than the sum of its proper divisors (3618301).

222122220011 is an equidigital number, since it uses as much as digits as its factorization.

222122220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618300.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222122220011 its reverse (110022221222), we get a palindrome (332144441233).

The spelling of 222122220011 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, eleven".