10111002221 has 8 divisors (see below), whose sum is σ = 10636941600. Its totient is φ = 9596881840.

The previous prime is 10111002217. The next prime is 10111002259. The reversal of 10111002221 is 12220011101.

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

It is not a de Polignac number, because 10111002221 - 2² = 10111002217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111002281) 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, 2952995 + ... + 2956416.

It is an arithmetic number, because the mean of its divisors is an integer number (1329617700).

Almost surely, 2^10111002221 is an apocalyptic number.

It is an amenable number.

10111002221 is a deficient number, since it is larger than the sum of its proper divisors (525939379).

10111002221 is an equidigital number, since it uses as much as digits as its factorization.

10111002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909499.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10111002221 its reverse (12220011101), we get a palindrome (22331013322).

The spelling of 10111002221 in words is "ten billion, one hundred eleven million, two thousand, two hundred twenty-one".