222121022001 has 8 divisors (see below), whose sum is σ = 296727638880. Its totient is φ = 147797543232.

The previous prime is 222121021999. The next prime is 222121022017. The reversal of 222121022001 is 100220121222.

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

It is not a de Polignac number, because 222121022001 - 2¹ = 222121021999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222121022021) 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, 70782696 + ... + 70785833.

It is an arithmetic number, because the mean of its divisors is an integer number (37090954860).

Almost surely, 2^222121022001 is an apocalyptic number.

It is an amenable number.

222121022001 is a deficient number, since it is larger than the sum of its proper divisors (74606616879).

222121022001 is a wasteful number, since it uses less digits than its factorization.

222121022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141569055.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222121022001 its reverse (100220121222), we get a palindrome (322341143223).

The spelling of 222121022001 in words is "two hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, one".