10221121212011 has 2 divisors, whose sum is σ = 10221121212012. Its totient is φ = 10221121212010.

The previous prime is 10221121211999. The next prime is 10221121212041. The reversal of 10221121212011 is 11021212112201.

10221121212011 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 10221121212011 - 2¹⁴ = 10221121195627 is a prime.

It is a super-2 number, since 2×10221121212011² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10221121212041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110560606005 + 5110560606006.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560606006).

Almost surely, 2^{10221121212011} is an apocalyptic number.

10221121212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221121212011 is an equidigital number, since it uses as much as digits as its factorization.

10221121212011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10221121212011 its reverse (11021212112201), we get a palindrome (21242333324212).

The spelling of 10221121212011 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, eleven".