10121011221201 has 16 divisors (see below), whose sum is σ = 13739272171968. Its totient is φ = 6625422417600.

The previous prime is 10121011221187. The next prime is 10121011221203. The reversal of 10121011221201 is 10212211012101.

It is a happy number.

10121011221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10121011221201 - 2⁶ = 10121011221137 is a prime.

It is a super-3 number, since 3×10121011221201³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10121011221203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47001670 + ... + 47216511.

It is an arithmetic number, because the mean of its divisors is an integer number (858704510748).

Almost surely, 2^{10121011221201} is an apocalyptic number.

It is an amenable number.

10121011221201 is a deficient number, since it is larger than the sum of its proper divisors (3618260950767).

10121011221201 is an equidigital number, since it uses as much as digits as its factorization.

10121011221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94218832.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10121011221201 its reverse (10212211012101), we get a palindrome (20333222233302).

The spelling of 10121011221201 in words is "ten trillion, one hundred twenty-one billion, eleven million, two hundred twenty-one thousand, two hundred one".