10202112220 has 24 divisors (see below), whose sum is σ = 21447339984. Its totient is φ = 4076482176.

The previous prime is 10202112211. The next prime is 10202112223. The reversal of 10202112220 is 2221120201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10202112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202112223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253462 + ... + 290941.

It is an arithmetic number, because the mean of its divisors is an integer number (893639166).

Almost surely, 2^10202112220 is an apocalyptic number.

10202112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202112220 is an abundant number, since it is smaller than the sum of its proper divisors (11245227764).

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

10202112220 is a wasteful number, since it uses less digits than its factorization.

10202112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545349 (or 545347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10202112220 its reverse (2221120201), we get a palindrome (12423232421).

The spelling of 10202112220 in words is "ten billion, two hundred two million, one hundred twelve thousand, two hundred twenty".