100211221001011 has 2 divisors, whose sum is σ = 100211221001012. Its totient is φ = 100211221001010.

The previous prime is 100211221001009. The next prime is 100211221001093. The reversal of 100211221001011 is 110100122112001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100211221001011 - 2¹ = 100211221001009 is a prime.

Together with 100211221001009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 100211221000982 and 100211221001000.

It is not a weakly prime, because it can be changed into another prime (100211221001911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105610500505 + 50105610500506.

It is an arithmetic number, because the mean of its divisors is an integer number (50105610500506).

Almost surely, 2^{100211221001011} is an apocalyptic number.

100211221001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211221001011 is an equidigital number, since it uses as much as digits as its factorization.

100211221001011 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 100211221001011 its reverse (110100122112001), we get a palindrome (210311343113012).

The spelling of 100211221001011 in words is "one hundred trillion, two hundred eleven billion, two hundred twenty-one million, one thousand, eleven".