10000000212220 has 24 divisors (see below), whose sum is σ = 21000073316544. Its totient is φ = 3999986204736.

The previous prime is 10000000212199. The next prime is 10000000212227. The reversal of 10000000212220 is 2221200000001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10000000212197 and 10000000212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000000212227) 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, 6613822 + ... + 7983898.

It is an arithmetic number, because the mean of its divisors is an integer number (875003054856).

Almost surely, 2^{10000000212220} is an apocalyptic number.

10000000212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000000212220 is an abundant number, since it is smaller than the sum of its proper divisors (11000073104324).

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

10000000212220 is a wasteful number, since it uses less digits than its factorization.

10000000212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735029 (or 1735027 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10000000212220 its reverse (2221200000001), we get a palindrome (12221200212221).

The spelling of 10000000212220 in words is "ten trillion, two hundred twelve thousand, two hundred twenty".