110101020120121 has 4 divisors (see below), whose sum is σ = 111744318927952. Its totient is φ = 108457721312292.

The previous prime is 110101020120107. The next prime is 110101020120181. The reversal of 110101020120121 is 121021020101011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110101020120121 - 2¹¹ = 110101020118073 is a prime.

It is a super-2 number, since 2×110101020120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110101020120181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821649403815 + ... + 821649403948.

It is an arithmetic number, because the mean of its divisors is an integer number (27936079731988).

Almost surely, 2^{110101020120121} is an apocalyptic number.

It is an amenable number.

110101020120121 is a deficient number, since it is larger than the sum of its proper divisors (1643298807831).

110101020120121 is an equidigital number, since it uses as much as digits as its factorization.

110101020120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643298807830.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 110101020120121 its reverse (121021020101011), we get a palindrome (231122040221132).

The spelling of 110101020120121 in words is "one hundred ten trillion, one hundred one billion, twenty million, one hundred twenty thousand, one hundred twenty-one".