20220221210 has 64 divisors (see below), whose sum is σ = 42401905920. Its totient is φ = 6799603200.

The previous prime is 20220221201. The next prime is 20220221213. The reversal of 20220221210 is 1212202202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20220221213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743126 + ... + 769854.

It is an arithmetic number, because the mean of its divisors is an integer number (662529780).

Almost surely, 2^20220221210 is an apocalyptic number.

20220221210 is an abundant number, since it is smaller than the sum of its proper divisors (22181684710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20220221210 is a wasteful number, since it uses less digits than its factorization.

20220221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26951.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20220221210 its reverse (1212202202), we get a palindrome (21432423412).

The spelling of 20220221210 in words is "twenty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred ten".