112210210021 has 16 divisors (see below), whose sum is σ = 138186445824. Its totient is φ = 88729265664.

The previous prime is 112210210001. The next prime is 112210210103. The reversal of 112210210021 is 120012012211.

It is not a de Polignac number, because 112210210021 - 2¹⁷ = 112210078949 is a prime.

It is a super-2 number, since 2×112210210021² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 112210209983 and 112210210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210210001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208885 + ... + 517738.

It is an arithmetic number, because the mean of its divisors is an integer number (8636652864).

Almost surely, 2^112210210021 is an apocalyptic number.

It is an amenable number.

112210210021 is a deficient number, since it is larger than the sum of its proper divisors (25976235803).

112210210021 is a wasteful number, since it uses less digits than its factorization.

112210210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728340.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112210210021 its reverse (120012012211), we get a palindrome (232222222232).

The spelling of 112210210021 in words is "one hundred twelve billion, two hundred ten million, two hundred ten thousand, twenty-one".