222201112221101 has 8 divisors (see below), whose sum is σ = 247545005657880. Its totient is φ = 198036004525632.

The previous prime is 222201112221091. The next prime is 222201112221103. The reversal of 222201112221101 is 101122211102222.

It can be written as a sum of positive squares in 4 ways, for example, as 67366766091076 + 154834346130025 = 8207726^2 + 12443245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-222201112221101 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 (222201112221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294696434930 + ... + 294696435683.

It is an arithmetic number, because the mean of its divisors is an integer number (30943125707235).

Almost surely, 2^{222201112221101} is an apocalyptic number.

It is an amenable number.

222201112221101 is a deficient number, since it is larger than the sum of its proper divisors (25343893436779).

222201112221101 is a wasteful number, since it uses less digits than its factorization.

222201112221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589392870655.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222201112221101 its reverse (101122211102222), we get a palindrome (323323323323323).

The spelling of 222201112221101 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred one".