1101012221111 has 16 divisors (see below), whose sum is σ = 1242565522560. Its totient is φ = 966371572320.

The previous prime is 1101012221021. The next prime is 1101012221119. The reversal of 1101012221111 is 1111222101011.

It is a de Polignac number, because none of the positive numbers 2^k-1101012221111 is a prime.

It is a super-2 number, since 2×1101012221111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14215256 + ... + 14292498.

It is an arithmetic number, because the mean of its divisors is an integer number (77660345160).

Almost surely, 2^{1101012221111} is an apocalyptic number.

1101012221111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101012221111 is a deficient number, since it is larger than the sum of its proper divisors (141553301449).

1101012221111 is a wasteful number, since it uses less digits than its factorization.

1101012221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121966.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1101012221111 its reverse (1111222101011), we get a palindrome (2212234322122).

The spelling of 1101012221111 in words is "one trillion, one hundred one billion, twelve million, two hundred twenty-one thousand, one hundred eleven".