222101010001 has 16 divisors (see below), whose sum is σ = 241719096528. Its totient is φ = 202847616000.

The previous prime is 222101009953. The next prime is 222101010011. The reversal of 222101010001 is 100010101222.

It can be written as a sum of positive squares in 8 ways, for example, as 10570924225 + 211530085776 = 102815^2 + 459924^2 .

It is a cyclic number.

It is not a de Polignac number, because 222101010001 - 2⁹ = 222101009489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222101010001.

It is not an unprimeable number, because it can be changed into a prime (222101010011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1887445 + ... + 2001661.

It is an arithmetic number, because the mean of its divisors is an integer number (15107443533).

Almost surely, 2^222101010001 is an apocalyptic number.

It is an amenable number.

222101010001 is a deficient number, since it is larger than the sum of its proper divisors (19618086527).

222101010001 is a wasteful number, since it uses less digits than its factorization.

222101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115812.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 222101010001 its reverse (100010101222), we get a palindrome (322111111223).

The spelling of 222101010001 in words is "two hundred twenty-two billion, one hundred one million, ten thousand, one".