222211021020001 has 4 divisors (see below), whose sum is σ = 239304176483092. Its totient is φ = 205117865556912.

The previous prime is 222211021019971. The next prime is 222211021020011. The reversal of 222211021020001 is 100020120112222.

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 143971777382976 + 78239243637025 = 11998824^2 + 8845295^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211021020001 - 2⁵ = 222211021019969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222211021020011) 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, 8546577731526 + ... + 8546577731551.

It is an arithmetic number, because the mean of its divisors is an integer number (59826044120773).

Almost surely, 2^{222211021020001} is an apocalyptic number.

It is an amenable number.

222211021020001 is a deficient number, since it is larger than the sum of its proper divisors (17093155463091).

222211021020001 is a wasteful number, since it uses less digits than its factorization.

222211021020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17093155463090.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222211021020001 its reverse (100020120112222), we get a palindrome (322231141132223).

The spelling of 222211021020001 in words is "two hundred twenty-two trillion, two hundred eleven billion, twenty-one million, twenty thousand, one".