20202221010 has 64 divisors (see below), whose sum is σ = 51201745920. Its totient is φ = 5087263680.

The previous prime is 20202220967. The next prime is 20202221027. The reversal of 20202221010 is 1012220202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120289 + ... + 234251.

It is an arithmetic number, because the mean of its divisors is an integer number (800027280).

Almost surely, 2^20202221010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202221010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25600872960).

20202221010 is an abundant number, since it is smaller than the sum of its proper divisors (30999524910).

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

20202221010 is a wasteful number, since it uses less digits than its factorization.

20202221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114303.

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

Adding to 20202221010 its reverse (1012220202), we get a palindrome (21214441212).

The spelling of 20202221010 in words is "twenty billion, two hundred two million, two hundred twenty-one thousand, ten".