20122276 has 12 divisors (see below), whose sum is σ = 35346780. Its totient is φ = 10023200.

The previous prime is 20122241. The next prime is 20122343. The reversal of 20122276 is 67222102.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 17842176 = 1510^2 + 4224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8275 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (2945565).

Almost surely, 2^20122276 is an apocalyptic number.

It is an amenable number.

20122276 is a deficient number, since it is larger than the sum of its proper divisors (15224504).

20122276 is a wasteful number, since it uses less digits than its factorization.

20122276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18974 (or 18972 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20122276 is about 4485.7859957871. The cubic root of 20122276 is about 271.9938183428.

Adding to 20122276 its reverse (67222102), we get a palindrome (87344378).

The spelling of 20122276 in words is "twenty million, one hundred twenty-two thousand, two hundred seventy-six".