20020221210 has 32 divisors (see below), whose sum is σ = 52416580032. Its totient is φ = 4853386880.

The previous prime is 20020221203. The next prime is 20020221211. The reversal of 20020221210 is 1212202002.

It is not an unprimeable number, because it can be changed into a prime (20020221211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30333339 + ... + 30333998.

It is an arithmetic number, because the mean of its divisors is an integer number (1638018126).

Almost surely, 2^20020221210 is an apocalyptic number.

20020221210 is an abundant number, since it is smaller than the sum of its proper divisors (32396358822).

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

20020221210 is a wasteful number, since it uses less digits than its factorization.

20020221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60667358.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020221210 its reverse (1212202002), we get a palindrome (21232423212).

The spelling of 20020221210 in words is "twenty billion, twenty million, two hundred twenty-one thousand, two hundred ten".