10212220220 has 12 divisors (see below), whose sum is σ = 21445662504. Its totient is φ = 4084888080.

The previous prime is 10212220211. The next prime is 10212220307. The reversal of 10212220220 is 2202221201.

It is a junction number, because it is equal to n+sod(n) for n = 10212220195 and 10212220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255305486 + ... + 255305525.

It is an arithmetic number, because the mean of its divisors is an integer number (1787138542).

Almost surely, 2^10212220220 is an apocalyptic number.

10212220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212220220 is an abundant number, since it is smaller than the sum of its proper divisors (11233442284).

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

10212220220 is a wasteful number, since it uses less digits than its factorization.

10212220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510611020 (or 510611018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10212220220 its reverse (2202221201), we get a palindrome (12414441421).

The spelling of 10212220220 in words is "ten billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty".