10212112202220 has 48 divisors (see below), whose sum is σ = 31771015741920. Its totient is φ = 2723229920448.

The previous prime is 10212112202219. The next prime is 10212112202251. The reversal of 10212112202220 is 2220221121201.

It is a happy number.

10212112202220 is a `hidden beast` number, since 1 + 0 + 212 + 11 + 220 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10212112202193 and 10212112202202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9455658907 + ... + 9455659986.

It is an arithmetic number, because the mean of its divisors is an integer number (661896161290).

Almost surely, 2^{10212112202220} is an apocalyptic number.

10212112202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212112202220 is an abundant number, since it is smaller than the sum of its proper divisors (21558903539700).

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

10212112202220 is a wasteful number, since it uses less digits than its factorization.

10212112202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911318911 (or 18911318903 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10212112202220 its reverse (2220221121201), we get a palindrome (12432333323421).

The spelling of 10212112202220 in words is "ten trillion, two hundred twelve billion, one hundred twelve million, two hundred two thousand, two hundred twenty".