222222002211101 has 4 divisors (see below), whose sum is σ = 222261312671772. Its totient is φ = 222182691750432.

The previous prime is 222222002211089. The next prime is 222222002211173. The reversal of 222222002211101 is 101112200222222.

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 150482355765625 + 71739646445476 = 12267125^2 + 8469926^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222002211101 - 2¹⁸ = 222222001948957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222002211301) 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, 19655221856 + ... + 19655233161.

It is an arithmetic number, because the mean of its divisors is an integer number (55565328167943).

Almost surely, 2^{222222002211101} is an apocalyptic number.

It is an amenable number.

222222002211101 is a deficient number, since it is larger than the sum of its proper divisors (39310460671).

222222002211101 is an equidigital number, since it uses as much as digits as its factorization.

222222002211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39310460670.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222222002211101 its reverse (101112200222222), we get a palindrome (323334202433323).

The spelling of 222222002211101 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two million, two hundred eleven thousand, one hundred one".