10112121220220 has 96 divisors (see below), whose sum is σ = 22390060694400. Its totient is φ = 3830643532800.

The previous prime is 10112121220163. The next prime is 10112121220237. The reversal of 10112121220220 is 2202212121101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12303350 + ... + 13099490.

It is an arithmetic number, because the mean of its divisors is an integer number (233229798900).

Almost surely, 2^{10112121220220} is an apocalyptic number.

10112121220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10112121220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11195030347200).

10112121220220 is an abundant number, since it is smaller than the sum of its proper divisors (12277939474180).

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

10112121220220 is a wasteful number, since it uses less digits than its factorization.

10112121220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796599 (or 796597 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10112121220220 its reverse (2202212121101), we get a palindrome (12314333341321).

The spelling of 10112121220220 in words is "ten trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twenty".