2121010020211 has 8 divisors (see below), whose sum is σ = 2194182915120. Its totient is φ = 2047839433248.

The previous prime is 2121010020203. The next prime is 2121010020221. The reversal of 2121010020211 is 1120200101212.

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 2121010020211 - 2³ = 2121010020203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121010020191 and 2121010020200.

It is not an unprimeable number, because it can be changed into a prime (2121010020221) 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, 1408585 + ... + 2495221.

It is an arithmetic number, because the mean of its divisors is an integer number (274272864390).

Almost surely, 2^{2121010020211} is an apocalyptic number.

2121010020211 is a deficient number, since it is larger than the sum of its proper divisors (73172894909).

2121010020211 is a wasteful number, since it uses less digits than its factorization.

2121010020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153973.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2121010020211 its reverse (1120200101212), we get a palindrome (3241210121423).

The spelling of 2121010020211 in words is "two trillion, one hundred twenty-one billion, ten million, twenty thousand, two hundred eleven".