1121001102221 has 16 divisors (see below), whose sum is σ = 1505120362368. Its totient is φ = 806314478400.

The previous prime is 1121001102157. The next prime is 1121001102307. The reversal of 1121001102221 is 1222011001211.

It is a cyclic number.

It is not a de Polignac number, because 1121001102221 - 2⁶ = 1121001102157 is a prime.

It is a super-2 number, since 2×1121001102221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121001102196 and 1121001102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121001102421) 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 15 ways as a sum of consecutive naturals, for example, 559939610 + ... + 559941611.

It is an arithmetic number, because the mean of its divisors is an integer number (94070022648).

Almost surely, 2^{1121001102221} is an apocalyptic number.

1121001102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121001102221 is a deficient number, since it is larger than the sum of its proper divisors (384119260147).

1121001102221 is a wasteful number, since it uses less digits than its factorization.

1121001102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119881252.

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

Adding to 1121001102221 its reverse (1222011001211), we get a palindrome (2343012103432).

The spelling of 1121001102221 in words is "one trillion, one hundred twenty-one billion, one million, one hundred two thousand, two hundred twenty-one".