1102211120021 has 4 divisors (see below), whose sum is σ = 1202412130944. Its totient is φ = 1002010109100.

The previous prime is 1102211120011. The next prime is 1102211120089. The reversal of 1102211120021 is 1200211122011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1102211120021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102211119978 and 1102211120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102211120011) 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, 50100505445 + ... + 50100505466.

It is an arithmetic number, because the mean of its divisors is an integer number (300603032736).

Almost surely, 2^{1102211120021} is an apocalyptic number.

1102211120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102211120021 is a deficient number, since it is larger than the sum of its proper divisors (100201010923).

1102211120021 is a wasteful number, since it uses less digits than its factorization.

1102211120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100201010922.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1102211120021 its reverse (1200211122011), we get a palindrome (2302422242032).

The spelling of 1102211120021 in words is "one trillion, one hundred two billion, two hundred eleven million, one hundred twenty thousand, twenty-one".