10121000220221 has 8 divisors (see below), whose sum is σ = 11059710197184. Its totient is φ = 9185393417920.

The previous prime is 10121000220203. The next prime is 10121000220239. The reversal of 10121000220221 is 12202200012101.

It is an interprime number because it is at equal distance from previous prime (10121000220203) and next prime (10121000220239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10121000220221 - 2⁶ = 10121000220157 is a prime.

It is a super-3 number, since 3×10121000220221³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10121000220196 and 10121000220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121000820221) 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, 775786841 + ... + 775799886.

It is an arithmetic number, because the mean of its divisors is an integer number (1382463774648).

Almost surely, 2^{10121000220221} is an apocalyptic number.

10121000220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10121000220221 is a deficient number, since it is larger than the sum of its proper divisors (938709976963).

10121000220221 is a wasteful number, since it uses less digits than its factorization.

10121000220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551587331.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10121000220221 its reverse (12202200012101), we get a palindrome (22323200232322).

The spelling of 10121000220221 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty thousand, two hundred twenty-one".