20220272 has 10 divisors (see below), whose sum is σ = 39176808. Its totient is φ = 10110128.

The previous prime is 20220271. The next prime is 20220283. The reversal of 20220272 is 27202202.

It is a self number, because there is not a number n which added to its sum of digits gives 20220272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631868 + ... + 631899.

Almost surely, 2^20220272 is an apocalyptic number.

It is an amenable number.

20220272 is a deficient number, since it is larger than the sum of its proper divisors (18956536).

20220272 is a wasteful number, since it uses less digits than its factorization.

20220272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263775 (or 1263769 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 20220272 is about 4496.6956757157. The cubic root of 20220272 is about 272.4346424633.

Adding to 20220272 its reverse (27202202), we get a palindrome (47422474).

The spelling of 20220272 in words is "twenty million, two hundred twenty thousand, two hundred seventy-two".