1102121121011 has 4 divisors (see below), whose sum is σ = 1102182107232. Its totient is φ = 1102060134792.

The previous prime is 1102121120999. The next prime is 1102121121089. The reversal of 1102121121011 is 1101211212011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102121121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102121121091) 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 3 ways as a sum of consecutive naturals, for example, 30465995 + ... + 30502148.

It is an arithmetic number, because the mean of its divisors is an integer number (275545526808).

Almost surely, 2^{1102121121011} is an apocalyptic number.

1102121121011 is a deficient number, since it is larger than the sum of its proper divisors (60986221).

1102121121011 is an equidigital number, since it uses as much as digits as its factorization.

1102121121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60986220.

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

Adding to 1102121121011 its reverse (1101211212011), we get a palindrome (2203332333022).

The spelling of 1102121121011 in words is "one trillion, one hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, eleven".