1121021011404 has 36 divisors (see below), whose sum is σ = 3238505144784. Its totient is φ = 320291717472.

The previous prime is 1121021011399. The next prime is 1121021011417. The reversal of 1121021011404 is 4041101201211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×1121021011404⁴ (a number of 49 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224247787 + ... + 2224248290.

It is an arithmetic number, because the mean of its divisors is an integer number (89958476244).

Almost surely, 2^{1121021011404} is an apocalyptic number.

1121021011404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121021011404 is an abundant number, since it is smaller than the sum of its proper divisors (2117484133380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121021011404 is a wasteful number, since it uses less digits than its factorization.

1121021011404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448496094 (or 4448496089 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121021011404 its reverse (4041101201211), we get a palindrome (5162122212615).

The spelling of 1121021011404 in words is "one trillion, one hundred twenty-one billion, twenty-one million, eleven thousand, four hundred four".