1101210220111 has 2 divisors, whose sum is σ = 1101210220112. Its totient is φ = 1101210220110.

The previous prime is 1101210220109. The next prime is 1101210220139. The reversal of 1101210220111 is 1110220121011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101210220111 - 2¹ = 1101210220109 is a prime.

Together with 1101210220109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1101210220091 and 1101210220100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101210220211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550605110055 + 550605110056.

It is an arithmetic number, because the mean of its divisors is an integer number (550605110056).

Almost surely, 2^{1101210220111} is an apocalyptic number.

1101210220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101210220111 is an equidigital number, since it uses as much as digits as its factorization.

1101210220111 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 1101210220111 its reverse (1110220121011), we get a palindrome (2211430341122).

The spelling of 1101210220111 in words is "one trillion, one hundred one billion, two hundred ten million, two hundred twenty thousand, one hundred eleven".