1101000211221 has 8 divisors (see below), whose sum is σ = 1481468174560. Its totient is φ = 727266194352.

The previous prime is 1101000211189. The next prime is 1101000211229. The reversal of 1101000211221 is 1221120001011.

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

It is not a de Polignac number, because 1101000211221 - 2⁵ = 1101000211189 is a prime.

It is a super-2 number, since 2×1101000211221² (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 = 1101000211197 and 1101000211206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101000211229) 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 7 ways as a sum of consecutive naturals, for example, 1683486235 + ... + 1683486888.

It is an arithmetic number, because the mean of its divisors is an integer number (185183521820).

Almost surely, 2^{1101000211221} is an apocalyptic number.

It is an amenable number.

1101000211221 is a deficient number, since it is larger than the sum of its proper divisors (380467963339).

1101000211221 is a wasteful number, since it uses less digits than its factorization.

1101000211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366973235.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101000211221 its reverse (1221120001011), we get a palindrome (2322120212232).

The spelling of 1101000211221 in words is "one trillion, one hundred one billion, two hundred eleven thousand, two hundred twenty-one".