1112210021 has 8 divisors (see below), whose sum is σ = 1223249664. Its totient is φ = 1004811120.

The previous prime is 1112209963. The next prime is 1112210027. The reversal of 1112210021 is 1200122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1112210021 - 2⁶ = 1112209957 is a prime.

It is a super-2 number, since 2×1112210021² = 2474022261625640882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112209984 and 1112210011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112210027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909545 + ... + 910766.

It is an arithmetic number, because the mean of its divisors is an integer number (152906208).

Almost surely, 2^1112210021 is an apocalyptic number.

It is an amenable number.

1112210021 is a deficient number, since it is larger than the sum of its proper divisors (111039643).

1112210021 is a wasteful number, since it uses less digits than its factorization.

1112210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820371.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1112210021 is about 33349.8129080209. The cubic root of 1112210021 is about 1036.0855129968.

Adding to 1112210021 its reverse (1200122111), we get a palindrome (2312332132).

The spelling of 1112210021 in words is "one billion, one hundred twelve million, two hundred ten thousand, twenty-one".