222212201202001 has 4 divisors (see below), whose sum is σ = 222212272018612. Its totient is φ = 222212130385392.

The previous prime is 222212201201971. The next prime is 222212201202041. The reversal of 222212201202001 is 100202102212222.

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 53590964742225 + 168621236459776 = 7320585^2 + 12985424^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212201202001 - 2¹¹ = 222212201199953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222212201202001.

It is not an unprimeable number, because it can be changed into a prime (222212201202041) 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, 30472146 + ... + 37053691.

It is an arithmetic number, because the mean of its divisors is an integer number (55553068004653).

Almost surely, 2^{222212201202001} is an apocalyptic number.

It is an amenable number.

222212201202001 is a deficient number, since it is larger than the sum of its proper divisors (70816611).

222212201202001 is an equidigital number, since it uses as much as digits as its factorization.

222212201202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70816610.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222212201202001 its reverse (100202102212222), we get a palindrome (322414303414223).

The spelling of 222212201202001 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred one million, two hundred two thousand, one".