222211000001 has 4 divisors (see below), whose sum is σ = 224707752900. Its totient is φ = 219714247104.

The previous prime is 222210999949. The next prime is 222211000057. The reversal of 222211000001 is 100000112222.

It is a happy number.

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 43957315600 + 178253684401 = 209660^2 + 422201^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211000001 - 2¹⁸ = 222210737857 is a prime.

It is a super-5 number, since 5×222211000001⁵ (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 (222211000301) 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, 1248376316 + ... + 1248376493.

It is an arithmetic number, because the mean of its divisors is an integer number (56176938225).

Almost surely, 2^222211000001 is an apocalyptic number.

It is an amenable number.

222211000001 is a deficient number, since it is larger than the sum of its proper divisors (2496752899).

222211000001 is an equidigital number, since it uses as much as digits as its factorization.

222211000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496752898.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 222211000001 its reverse (100000112222), we get a palindrome (322211112223).

The spelling of 222211000001 in words is "two hundred twenty-two billion, two hundred eleven million, one", and thus it is an aban number.