201222002121 has 8 divisors (see below), whose sum is σ = 306624003264. Its totient is φ = 114984001200.

The previous prime is 201222002101. The next prime is 201222002161. The reversal of 201222002121 is 121200222102.

201222002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 201222002121 - 2¹⁴ = 201221985737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201222002121.

It is not an unprimeable number, because it can be changed into a prime (201222002101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4791000030 + ... + 4791000071.

It is an arithmetic number, because the mean of its divisors is an integer number (38328000408).

Almost surely, 2^201222002121 is an apocalyptic number.

201222002121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201222002121 is a deficient number, since it is larger than the sum of its proper divisors (105402001143).

201222002121 is an equidigital number, since it uses as much as digits as its factorization.

201222002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582000111.

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

Adding to 201222002121 its reverse (121200222102), we get a palindrome (322422224223).

The spelling of 201222002121 in words is "two hundred one billion, two hundred twenty-two million, two thousand, one hundred twenty-one".