20221332210 has 256 divisors, whose sum is σ = 58820152320. Its totient is φ = 4924108800.

The previous prime is 20221332133. The next prime is 20221332221. The reversal of 20221332210 is 1223312202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24569859 + ... + 24570681.

It is an arithmetic number, because the mean of its divisors is an integer number (229766220).

Almost surely, 2^20221332210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20221332210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29410076160).

20221332210 is an abundant number, since it is smaller than the sum of its proper divisors (38598820110).

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

20221332210 is a wasteful number, since it uses less digits than its factorization.

20221332210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20221332210 its reverse (1223312202), we get a palindrome (21444644412).

The spelling of 20221332210 in words is "twenty billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred ten".