10212122212220 has 24 divisors (see below), whose sum is σ = 21635239452624. Its totient is φ = 4048699778816.

The previous prime is 10212122212207. The next prime is 10212122212241. The reversal of 10212122212220 is 2221222121201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10212122212192 and 10212122212201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2259316814 + ... + 2259321333.

It is an arithmetic number, because the mean of its divisors is an integer number (901468310526).

Almost surely, 2^{10212122212220} is an apocalyptic number.

10212122212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212122212220 is an abundant number, since it is smaller than the sum of its proper divisors (11423117240404).

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

10212122212220 is a wasteful number, since it uses less digits than its factorization.

10212122212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518638269 (or 4518638267 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10212122212220 its reverse (2221222121201), we get a palindrome (12433344333421).

The spelling of 10212122212220 in words is "ten trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty".