10110101011221 has 4 divisors (see below), whose sum is σ = 13480134681632. Its totient is φ = 6740067340812.

The previous prime is 10110101011217. The next prime is 10110101011223. The reversal of 10110101011221 is 12211010101101.

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 not a de Polignac number, because 10110101011221 - 2² = 10110101011217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10110101011197 and 10110101011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110101011223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685016835201 + ... + 1685016835206.

It is an arithmetic number, because the mean of its divisors is an integer number (3370033670408).

Almost surely, 2^{10110101011221} is an apocalyptic number.

It is an amenable number.

10110101011221 is a deficient number, since it is larger than the sum of its proper divisors (3370033670411).

10110101011221 is an equidigital number, since it uses as much as digits as its factorization.

10110101011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370033670410.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 10110101011221 its reverse (12211010101101), we get a palindrome (22321111112322).

The spelling of 10110101011221 in words is "ten trillion, one hundred ten billion, one hundred one million, eleven thousand, two hundred twenty-one".