10101110222221 has 4 divisors (see below), whose sum is σ = 10101910703200. Its totient is φ = 10100309741244.

The previous prime is 10101110222209. The next prime is 10101110222243. The reversal of 10101110222221 is 12222201110101.

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 10101110222221 - 2³⁹ = 9551354408333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101110222195 and 10101110222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101110222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400221561 + ... + 400246798.

It is an arithmetic number, because the mean of its divisors is an integer number (2525477675800).

Almost surely, 2^{10101110222221} is an apocalyptic number.

It is an amenable number.

10101110222221 is a deficient number, since it is larger than the sum of its proper divisors (800480979).

10101110222221 is an equidigital number, since it uses as much as digits as its factorization.

10101110222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800480978.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10101110222221 its reverse (12222201110101), we get a palindrome (22323311332322).

The spelling of 10101110222221 in words is "ten trillion, one hundred one billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".