20122263 has 40 divisors (see below), whose sum is σ = 35870208. Its totient is φ = 10991376.

The previous prime is 20122241. The next prime is 20122343. The reversal of 20122263 is 36222102.

It is not a de Polignac number, because 20122263 - 2⁶ = 20122199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122213) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12270 + ... + 13812.

Almost surely, 2^20122263 is an apocalyptic number.

20122263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20122263 is a deficient number, since it is larger than the sum of its proper divisors (15747945).

20122263 is a wasteful number, since it uses less digits than its factorization.

20122263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20122263 is about 4485.7845467655. The cubic root of 20122263 is about 271.9937597689.

Adding to 20122263 its reverse (36222102), we get a palindrome (56344365).

The spelling of 20122263 in words is "twenty million, one hundred twenty-two thousand, two hundred sixty-three".