1100021132121 has 16 divisors (see below), whose sum is σ = 1544400940800. Its totient is φ = 694519954128.

The previous prime is 1100021132107. The next prime is 1100021132143. The reversal of 1100021132121 is 1212311200011.

It is not a de Polignac number, because 1100021132121 - 2¹⁷ = 1100021001049 is a prime.

It is a super-2 number, since 2×1100021132121² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100021132121.

It is not an unprimeable number, because it can be changed into a prime (1100021112121) 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, 3024111 + ... + 3368276.

It is an arithmetic number, because the mean of its divisors is an integer number (96525058800).

Almost surely, 2^{1100021132121} is an apocalyptic number.

It is an amenable number.

1100021132121 is a deficient number, since it is larger than the sum of its proper divisors (444379808679).

1100021132121 is a wasteful number, since it uses less digits than its factorization.

1100021132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395428.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1100021132121 its reverse (1212311200011), we get a palindrome (2312332332132).

The spelling of 1100021132121 in words is "one trillion, one hundred billion, twenty-one million, one hundred thirty-two thousand, one hundred twenty-one".