222122220001 has 32 divisors (see below), whose sum is σ = 249889764096. Its totient is φ = 195742080000.

The previous prime is 222122219981. The next prime is 222122220049. The reversal of 222122220001 is 100022221222.

222122220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222122220001 - 2²⁵ = 222088665569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11101116 + ... + 11121106.

It is an arithmetic number, because the mean of its divisors is an integer number (7809055128).

Almost surely, 2^222122220001 is an apocalyptic number.

It is an amenable number.

222122220001 is a deficient number, since it is larger than the sum of its proper divisors (27767544095).

222122220001 is a wasteful number, since it uses less digits than its factorization.

222122220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20313.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222122220001 its reverse (100022221222), we get a palindrome (322144441223).

It can be divided in two parts, 2221 and 22220001, that added together give a palindrome (22222222).

The spelling of 222122220001 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one".