1101211112111 has 8 divisors (see below), whose sum is σ = 1201348969344. Its totient is φ = 1001077880920.

The previous prime is 1101211112087. The next prime is 1101211112137. The reversal of 1101211112111 is 1112111121011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101211112111 - 2²⁶ = 1101144003247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101211112171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649091 + ... + 1619796.

It is an arithmetic number, because the mean of its divisors is an integer number (150168621168).

Almost surely, 2^{1101211112111} is an apocalyptic number.

1101211112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101211112111 is a deficient number, since it is larger than the sum of its proper divisors (100137857233).

1101211112111 is a wasteful number, since it uses less digits than its factorization.

1101211112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313021.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1101211112111 its reverse (1112111121011), we get a palindrome (2213322233122).

The spelling of 1101211112111 in words is "one trillion, one hundred one billion, two hundred eleven million, one hundred twelve thousand, one hundred eleven".