1121210122211 has 8 divisors (see below), whose sum is σ = 1132765608384. Its totient is φ = 1109674578600.

The previous prime is 1121210122139. The next prime is 1121210122213. The reversal of 1121210122211 is 1122210121211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121210122211 - 2³⁰ = 1120136380387 is a prime.

It is a super-2 number, since 2×1121210122211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121210122211.

It is not an unprimeable number, because it can be changed into a prime (1121210122213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4872605 + ... + 5097518.

It is an arithmetic number, because the mean of its divisors is an integer number (141595701048).

Almost surely, 2^{1121210122211} is an apocalyptic number.

1121210122211 is a deficient number, since it is larger than the sum of its proper divisors (11555486173).

1121210122211 is a wasteful number, since it uses less digits than its factorization.

1121210122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971281.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121210122211 its reverse (1122210121211), we get a palindrome (2243420243422).

It can be divided in two parts, 1121210 and 122211, that added together give a palindrome (1243421).

The spelling of 1121210122211 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty-two thousand, two hundred eleven".