20220210 has 24 divisors (see below), whose sum is σ = 52572780.
Its totient is φ = 5392032.
The previous prime is 20220173. The next prime is 20220217. The reversal of 20220210 is 1202202.
It can be written as a sum of positive squares in 2 ways, for example, as 18844281 + 1375929 = 4341^2 + 1173^2
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 20220192 and 20220201.
It is not an unprimeable number, because it can be changed into a prime (20220217) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112245 + ... + 112424.
Almost surely, 220220210 is an apocalyptic number.
20220210 is an abundant number, since it is smaller than the sum of its proper divisors (32352570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20220210 is a wasteful number, since it uses less digits than its factorization.
20220210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 224682 (or 224679 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
The square root of 20220210 is about 4496.6887817593.
The cubic root of 20220210 is about 272.4343640139.
Adding to 20220210 its reverse (1202202), we get a palindrome (21422412).
The spelling of 20220210 in words is "twenty million, two hundred twenty thousand, two hundred ten".