2121011120211 has 8 divisors (see below), whose sum is σ = 2828043086784. Its totient is φ = 1413993283560.

The previous prime is 2121011120209. The next prime is 2121011120281. The reversal of 2121011120211 is 1120211101212.

It is a happy number.

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

It is not a de Polignac number, because 2121011120211 - 2¹ = 2121011120209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121011120281) 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, 3177121 + ... + 3786306.

It is an arithmetic number, because the mean of its divisors is an integer number (353505385848).

Almost surely, 2^{2121011120211} is an apocalyptic number.

2121011120211 is a deficient number, since it is larger than the sum of its proper divisors (707031966573).

2121011120211 is a wasteful number, since it uses less digits than its factorization.

2121011120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064961.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2121011120211 its reverse (1120211101212), we get a palindrome (3241222221423).

The spelling of 2121011120211 in words is "two trillion, one hundred twenty-one billion, eleven million, one hundred twenty thousand, two hundred eleven".