2121000211211 has 8 divisors (see below), whose sum is σ = 2424014822400. Its totient is φ = 1817989245288.

The previous prime is 2121000211199. The next prime is 2121000211277. The reversal of 2121000211211 is 1121120001212.

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 2121000211211 - 2¹⁸ = 2120999949067 is a prime.

It is a super-2 number, since 2×2121000211211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121000211411) 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, 476390 + ... + 2113988.

It is an arithmetic number, because the mean of its divisors is an integer number (303001852800).

Almost surely, 2^{2121000211211} is an apocalyptic number.

2121000211211 is a deficient number, since it is larger than the sum of its proper divisors (303014611189).

2121000211211 is a wasteful number, since it uses less digits than its factorization.

2121000211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822633.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121000211211 its reverse (1121120001212), we get a palindrome (3242120212423).

The spelling of 2121000211211 in words is "two trillion, one hundred twenty-one billion, two hundred eleven thousand, two hundred eleven".