222001202121 has 8 divisors (see below), whose sum is σ = 299748458880. Its totient is φ = 146127373392.

The previous prime is 222001202119. The next prime is 222001202141. The reversal of 222001202121 is 121202100222.

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

It is not a de Polignac number, because 222001202121 - 2¹ = 222001202119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222001202121.

It is not an unprimeable number, because it can be changed into a prime (222001202141) 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, 468356730 + ... + 468357203.

It is an arithmetic number, because the mean of its divisors is an integer number (37468557360).

Almost surely, 2^222001202121 is an apocalyptic number.

It is an amenable number.

222001202121 is a deficient number, since it is larger than the sum of its proper divisors (77747256759).

222001202121 is an equidigital number, since it uses as much as digits as its factorization.

222001202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936714015.

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

Adding to 222001202121 its reverse (121202100222), we get a palindrome (343203302343).

The spelling of 222001202121 in words is "two hundred twenty-two billion, one million, two hundred two thousand, one hundred twenty-one".