1011021120211 has 2 divisors, whose sum is σ = 1011021120212. Its totient is φ = 1011021120210.

The previous prime is 1011021120209. The next prime is 1011021120313. The reversal of 1011021120211 is 1120211201101.

It is a happy number.

1011021120211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011021120211 - 2¹ = 1011021120209 is a prime.

Together with 1011021120209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1011021120191 and 1011021120200.

It is not a weakly prime, because it can be changed into another prime (1011021130211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505510560105 + 505510560106.

It is an arithmetic number, because the mean of its divisors is an integer number (505510560106).

Almost surely, 2^{1011021120211} is an apocalyptic number.

1011021120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011021120211 is an equidigital number, since it uses as much as digits as its factorization.

1011021120211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011021120211 its reverse (1120211201101), we get a palindrome (2131232321312).

The spelling of 1011021120211 in words is "one trillion, eleven billion, twenty-one million, one hundred twenty thousand, two hundred eleven".