1121010021011 has 8 divisors (see below), whose sum is σ = 1168406313984. Its totient is φ = 1074315895560.

The previous prime is 1121010020947. The next prime is 1121010021097. The reversal of 1121010021011 is 1101200101211.

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 1121010021011 - 2⁶ = 1121010020947 is a prime.

It is a super-2 number, since 2×1121010021011² (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 = 1121010020983 and 1121010021001.

It is not an unprimeable number, because it can be changed into a prime (1121010021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175538621 + ... + 175545006.

It is an arithmetic number, because the mean of its divisors is an integer number (146050789248).

Almost surely, 2^{1121010021011} is an apocalyptic number.

1121010021011 is a deficient number, since it is larger than the sum of its proper divisors (47396292973).

1121010021011 is a wasteful number, since it uses less digits than its factorization.

1121010021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351083761.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1121010021011 its reverse (1101200101211), we get a palindrome (2222210122222).

The spelling of 1121010021011 in words is "one trillion, one hundred twenty-one billion, ten million, twenty-one thousand, eleven".