22041012 has 48 divisors (see below), whose sum is σ = 59254272. Its totient is φ = 6246240.

The previous prime is 22041001. The next prime is 22041013. The reversal of 22041012 is 21014022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22041013) 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, 10003 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (1234464).

Almost surely, 2^22041012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22041012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29627136).

22041012 is an abundant number, since it is smaller than the sum of its proper divisors (37213260).

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

22041012 is a wasteful number, since it uses less digits than its factorization.

22041012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22041012 is about 4694.7856181087. The cubic root of 22041012 is about 280.3779420080.

Adding to 22041012 its reverse (21014022), we get a palindrome (43055034).

The spelling of 22041012 in words is "twenty-two million, forty-one thousand, twelve".