11022121011 has 64 divisors (see below), whose sum is σ = 16785211392. Its totient is φ = 6375600000.

The previous prime is 11022121009. The next prime is 11022121043. The reversal of 11022121011 is 11012122011.

It is not a de Polignac number, because 11022121011 - 2¹ = 11022121009 is a prime.

It is a super-2 number, since 2×11022121011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11022121511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11121726 + ... + 11122716.

It is an arithmetic number, because the mean of its divisors is an integer number (262268928).

Almost surely, 2^11022121011 is an apocalyptic number.

11022121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11022121011 is a deficient number, since it is larger than the sum of its proper divisors (5763090381).

11022121011 is a wasteful number, since it uses less digits than its factorization.

11022121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

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

Adding to 11022121011 its reverse (11012122011), we get a palindrome (22034243022).

The spelling of 11022121011 in words is "eleven billion, twenty-two million, one hundred twenty-one thousand, eleven".