2211210022121 has 8 divisors (see below), whose sum is σ = 2211781684320. Its totient is φ = 2210638447072.

The previous prime is 2211210022103. The next prime is 2211210022123. The reversal of 2211210022121 is 1212200121122.

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 2211210022121 - 2¹⁴ = 2211210005737 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 2211210022121.

It is not an unprimeable number, because it can be changed into a prime (2211210022123) 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, 97644026 + ... + 97666668.

It is an arithmetic number, because the mean of its divisors is an integer number (276472710540).

Almost surely, 2^{2211210022121} is an apocalyptic number.

It is an amenable number.

2211210022121 is a deficient number, since it is larger than the sum of its proper divisors (571662199).

2211210022121 is a wasteful number, since it uses less digits than its factorization.

2211210022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43575.

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

Adding to 2211210022121 its reverse (1212200121122), we get a palindrome (3423410143243).

Subtracting from 2211210022121 its reverse (1212200121122), we obtain a palindrome (999009900999).

The spelling of 2211210022121 in words is "two trillion, two hundred eleven billion, two hundred ten million, twenty-two thousand, one hundred twenty-one".