10210100112221 has 4 divisors (see below), whose sum is σ = 10311190212444. Its totient is φ = 10109010012000.

The previous prime is 10210100112217. The next prime is 10210100112259. The reversal of 10210100112221 is 12221100101201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7067032075321 + 3143068036900 = 2658389^2 + 1772870^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210100112221 - 2² = 10210100112217 is a prime.

It is a super-2 number, since 2×10210100112221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210100112196 and 10210100112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210160112221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50545049960 + ... + 50545050161.

It is an arithmetic number, because the mean of its divisors is an integer number (2577797553111).

Almost surely, 2^{10210100112221} is an apocalyptic number.

It is an amenable number.

10210100112221 is a deficient number, since it is larger than the sum of its proper divisors (101090100223).

10210100112221 is a wasteful number, since it uses less digits than its factorization.

10210100112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101090100222.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10210100112221 its reverse (12221100101201), we get a palindrome (22431200213422).

The spelling of 10210100112221 in words is "ten trillion, two hundred ten billion, one hundred million, one hundred twelve thousand, two hundred twenty-one".