22049012 has 12 divisors (see below), whose sum is σ = 38928036. Its totient is φ = 10926720.

The previous prime is 22049009. The next prime is 22049057. The reversal of 22049012 is 21094022.

It can be written as a sum of positive squares in 2 ways, for example, as 556516 + 21492496 = 746^2 + 4636^2 .

It is a super-2 number, since 2×22049012² = 972317860352288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23939 + ... + 24842.

It is an arithmetic number, because the mean of its divisors is an integer number (3244003).

Almost surely, 2^22049012 is an apocalyptic number.

It is an amenable number.

22049012 is a deficient number, since it is larger than the sum of its proper divisors (16879024).

22049012 is a wasteful number, since it uses less digits than its factorization.

22049012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48898 (or 48896 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22049012 is about 4695.6375498967. The cubic root of 22049012 is about 280.4118598731.

The spelling of 22049012 in words is "twenty-two million, forty-nine thousand, twelve".