20212210260 has 648 divisors, whose sum is σ = 74761683360. Its totient is φ = 4572754560.

The previous prime is 20212210259. The next prime is 20212210297. The reversal of 20212210260 is 6201221202.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 301674747 + ... + 301674813.

Almost surely, 2^20212210260 is an apocalyptic number.

20212210260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212210260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37380841680).

20212210260 is an abundant number, since it is smaller than the sum of its proper divisors (54549473100).

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

20212210260 is a wasteful number, since it uses less digits than its factorization.

20212210260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20212210260 its reverse (6201221202), we get a palindrome (26413431462).

The spelling of 20212210260 in words is "twenty billion, two hundred twelve million, two hundred ten thousand, two hundred sixty".