10212100101220 has 24 divisors (see below), whose sum is σ = 22706904931704. Its totient is φ = 3844555332096.

The previous prime is 10212100101199. The next prime is 10212100101223. The reversal of 10212100101220 is 2210100121201.

It can be written as a sum of positive squares in 4 ways, for example, as 4307384779776 + 5904715321444 = 2075424^2 + 2429962^2 .

It is a super-3 number, since 3×10212100101220³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10212100101220.

It is not an unprimeable number, because it can be changed into a prime (10212100101223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15017793927 + ... + 15017794606.

It is an arithmetic number, because the mean of its divisors is an integer number (946121038821).

Almost surely, 2^{10212100101220} is an apocalyptic number.

10212100101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212100101220 is an abundant number, since it is smaller than the sum of its proper divisors (12494804830484).

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

10212100101220 is a wasteful number, since it uses less digits than its factorization.

10212100101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30035588559 (or 30035588557 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10212100101220 its reverse (2210100121201), we get a palindrome (12422200222421).

The spelling of 10212100101220 in words is "ten trillion, two hundred twelve billion, one hundred million, one hundred one thousand, two hundred twenty".