2112220210121 has 8 divisors (see below), whose sum is σ = 2414243842560. Its totient is φ = 1810266049728.

The previous prime is 2112220210103. The next prime is 2112220210147. The reversal of 2112220210121 is 1210120222112.

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 2112220210121 - 2⁶ = 2112220210057 is a prime.

It is a super-2 number, since 2×2112220210121² (a number of 25 digits) contains 22 as substring.

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 2112220210121.

It is not an unprimeable number, because it can be changed into a prime (2112220210151) 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, 17302841 + ... + 17424486.

It is an arithmetic number, because the mean of its divisors is an integer number (301780480320).

Almost surely, 2^{2112220210121} is an apocalyptic number.

It is an amenable number.

2112220210121 is a deficient number, since it is larger than the sum of its proper divisors (302023632439).

2112220210121 is an equidigital number, since it uses as much as digits as its factorization.

2112220210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34736023.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112220210121 its reverse (1210120222112), we get a palindrome (3322340432233).

The spelling of 2112220210121 in words is "two trillion, one hundred twelve billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-one".