10121000011221 has 8 divisors (see below), whose sum is σ = 14721454561824. Its totient is φ = 6133939400720.

The previous prime is 10121000011207. The next prime is 10121000011379. The reversal of 10121000011221 is 12211000012101.

10121000011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10121000011221 - 2¹³ = 10121000003029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10121000011197 and 10121000011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121000011201) 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, 153348484986 + ... + 153348485051.

It is an arithmetic number, because the mean of its divisors is an integer number (1840181820228).

Almost surely, 2^{10121000011221} is an apocalyptic number.

10121000011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10121000011221 is a deficient number, since it is larger than the sum of its proper divisors (4600454550603).

10121000011221 is a wasteful number, since it uses less digits than its factorization.

10121000011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306696970051.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121000011221 its reverse (12211000012101), we get a palindrome (22332000023322).

The spelling of 10121000011221 in words is "ten trillion, one hundred twenty-one billion, eleven thousand, two hundred twenty-one".