1102011121121 has 4 divisors (see below), whose sum is σ = 1113372060612. Its totient is φ = 1090650181632.

The previous prime is 1102011121117. The next prime is 1102011121129. The reversal of 1102011121121 is 1211211102011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 443470756096 + 658540365025 = 665936^2 + 811505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102011121121 - 2² = 1102011121117 is a prime.

It is a super-2 number, since 2×1102011121121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102011121096 and 1102011121105.

It is not an unprimeable number, because it can be changed into a prime (1102011121129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680469600 + ... + 5680469793.

It is an arithmetic number, because the mean of its divisors is an integer number (278343015153).

Almost surely, 2^{1102011121121} is an apocalyptic number.

It is an amenable number.

1102011121121 is a deficient number, since it is larger than the sum of its proper divisors (11360939491).

1102011121121 is an equidigital number, since it uses as much as digits as its factorization.

1102011121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360939490.

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

Adding to 1102011121121 its reverse (1211211102011), we get a palindrome (2313222223132).

It can be divided in two parts, 1102011 and 121121, that multiplied together give a palindrome (133476674331).

The spelling of 1102011121121 in words is "one trillion, one hundred two billion, eleven million, one hundred twenty-one thousand, one hundred twenty-one".