10000011220 has 24 divisors (see below), whose sum is σ = 22105288800. Its totient is φ = 3789477792.

The previous prime is 10000011211. The next prime is 10000011227. The reversal of 10000011220 is 2211000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000011227) 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, 13157530 + ... + 13158289.

It is an arithmetic number, because the mean of its divisors is an integer number (921053700).

Almost surely, 2^10000011220 is an apocalyptic number.

10000011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000011220 is an abundant number, since it is smaller than the sum of its proper divisors (12105277580).

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

10000011220 is a wasteful number, since it uses less digits than its factorization.

10000011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26315847 (or 26315845 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10000011220 its reverse (2211000001), we get a palindrome (12211011221).

The spelling of 10000011220 in words is "ten billion, eleven thousand, two hundred twenty".