2012220202121 has 8 divisors (see below), whose sum is σ = 2037736821120. Its totient is φ = 1986704720208.

The previous prime is 2012220202117. The next prime is 2012220202127. The reversal of 2012220202121 is 1212020222102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2012220202121 - 2² = 2012220202117 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 2012220202121.

It is not an unprimeable number, because it can be changed into a prime (2012220202127) 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, 3614210 + ... + 4133636.

It is an arithmetic number, because the mean of its divisors is an integer number (254717102640).

Almost surely, 2^{2012220202121} is an apocalyptic number.

It is an amenable number.

2012220202121 is a deficient number, since it is larger than the sum of its proper divisors (25516618999).

2012220202121 is an equidigital number, since it uses as much as digits as its factorization.

2012220202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568543.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2012220202121 its reverse (1212020222102), we get a palindrome (3224240424223).

The spelling of 2012220202121 in words is "two trillion, twelve billion, two hundred twenty million, two hundred two thousand, one hundred twenty-one".