222220000001 has 4 divisors (see below), whose sum is σ = 222714922500. Its totient is φ = 221725077504.

The previous prime is 222219999971. The next prime is 222220000027. The reversal of 222220000001 is 100000022222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131739961600 + 90480038401 = 362960^2 + 300799^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220000001 - 2²² = 222215805697 is a prime.

It is a super-5 number, since 5×222220000001⁵ (a number of 58 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220000091) 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, 247460576 + ... + 247461473.

It is an arithmetic number, because the mean of its divisors is an integer number (55678730625).

Almost surely, 2^222220000001 is an apocalyptic number.

It is an amenable number.

222220000001 is a deficient number, since it is larger than the sum of its proper divisors (494922499).

222220000001 is an equidigital number, since it uses as much as digits as its factorization.

222220000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494922498.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 222220000001 its reverse (100000022222), we get a palindrome (322220022223).

The spelling of 222220000001 in words is "two hundred twenty-two billion, two hundred twenty million, one", and thus it is an aban number.