10012122212220 has 144 divisors (see below), whose sum is σ = 30892970410848. Its totient is φ = 2624003873280.

The previous prime is 10012122212203. The next prime is 10012122212231. The reversal of 10012122212220 is 2221222121001.

It is a happy number.

10012122212220 is a `hidden beast` number, since 10 + 0 + 1 + 212 + 221 + 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 = 10012122212193 and 10012122212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13213687 + ... + 13950833.

It is an arithmetic number, because the mean of its divisors is an integer number (214534516742).

Almost surely, 2^{10012122212220} is an apocalyptic number.

10012122212220 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 10012122212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15446485205424).

10012122212220 is an abundant number, since it is smaller than the sum of its proper divisors (20880848198628).

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

10012122212220 is a wasteful number, since it uses less digits than its factorization.

10012122212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738460 (or 738455 counting only the distinct ones).

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

Adding to 10012122212220 its reverse (2221222121001), we get a palindrome (12233344333221).

The spelling of 10012122212220 in words is "ten trillion, twelve billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty".