11010101020221 has 8 divisors (see below), whose sum is σ = 14681801600064. Its totient is φ = 7339233893600.

The previous prime is 11010101020187. The next prime is 11010101020279. The reversal of 11010101020221 is 12202010101011.

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 11010101020221 - 2³³ = 11001511085629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11010101020197 and 11010101020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010101020921) 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, 208332480 + ... + 208385321.

It is an arithmetic number, because the mean of its divisors is an integer number (1835225200008).

Almost surely, 2^{11010101020221} is an apocalyptic number.

It is an amenable number.

11010101020221 is a deficient number, since it is larger than the sum of its proper divisors (3671700579843).

11010101020221 is an equidigital number, since it uses as much as digits as its factorization.

11010101020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416726611.

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

Adding to 11010101020221 its reverse (12202010101011), we get a palindrome (23212111121232).

The spelling of 11010101020221 in words is "eleven trillion, ten billion, one hundred one million, twenty thousand, two hundred twenty-one".