111021012021011 has 2 divisors, whose sum is σ = 111021012021012. Its totient is φ = 111021012021010.

The previous prime is 111021012020959. The next prime is 111021012021091. The reversal of 111021012021011 is 110120210120111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111021012021011 - 2¹⁰ = 111021012019987 is a prime.

It is a super-2 number, since 2×111021012021011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111021012021091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510506010505 + 55510506010506.

It is an arithmetic number, because the mean of its divisors is an integer number (55510506010506).

Almost surely, 2^{111021012021011} is an apocalyptic number.

111021012021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021012021011 is an equidigital number, since it uses as much as digits as its factorization.

111021012021011 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 14.

Adding to 111021012021011 its reverse (110120210120111), we get a palindrome (221141222141122).

The spelling of 111021012021011 in words is "one hundred eleven trillion, twenty-one billion, twelve million, twenty-one thousand, eleven".