10110120121221 has 8 divisors (see below), whose sum is σ = 13480179724704. Its totient is φ = 6740070299280.

The previous prime is 10110120121187. The next prime is 10110120121237. The reversal of 10110120121221 is 12212102101101.

It is a happy number.

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

It is not a de Polignac number, because 10110120121221 - 2³⁷ = 9972681167749 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10110120121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110120121271) 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, 459186 + ... + 4520076.

It is an arithmetic number, because the mean of its divisors is an integer number (1685022465588).

Almost surely, 2^{10110120121221} is an apocalyptic number.

It is an amenable number.

10110120121221 is a deficient number, since it is larger than the sum of its proper divisors (3370059603483).

10110120121221 is an equidigital number, since it uses as much as digits as its factorization.

10110120121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890771.

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

Adding to 10110120121221 its reverse (12212102101101), we get a palindrome (22322222222322).

The spelling of 10110120121221 in words is "ten trillion, one hundred ten billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-one".