1112011021 has 24 divisors (see below), whose sum is σ = 1293084000. Its totient is φ = 948192000.

The previous prime is 1112011001. The next prime is 1112011027. The reversal of 1112011021 is 1201102111.

It is not a de Polignac number, because 1112011021 - 2¹⁷ = 1111879949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112010989 and 1112011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112011027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1585971 + ... + 1586671.

It is an arithmetic number, because the mean of its divisors is an integer number (53878500).

Almost surely, 2^1112011021 is an apocalyptic number.

1112011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112011021 is a deficient number, since it is larger than the sum of its proper divisors (181072979).

1112011021 is a wasteful number, since it uses less digits than its factorization.

1112011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1112011021 is about 33346.8292495703. The cubic root of 1112011021 is about 1036.0237161205.

Adding to 1112011021 its reverse (1201102111), we get a palindrome (2313113132).

It can be divided in two parts, 11 and 12011021, that multiplied together give a palindrome (132121231).

The spelling of 1112011021 in words is "one billion, one hundred twelve million, eleven thousand, twenty-one".