101011110221 has 12 divisors (see below), whose sum is σ = 124414645788. Its totient is φ = 81487953792.

The previous prime is 101011110217. The next prime is 101011110253. The reversal of 101011110221 is 122011110101.

It can be written as a sum of positive squares in 2 ways, for example, as 49556992996 + 51454117225 = 222614^2 + 226835^2 .

It is not a de Polignac number, because 101011110221 - 2² = 101011110217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011110121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60630086 + ... + 60631751.

It is an arithmetic number, because the mean of its divisors is an integer number (10367887149).

Almost surely, 2^101011110221 is an apocalyptic number.

It is an amenable number.

101011110221 is a deficient number, since it is larger than the sum of its proper divisors (23403535567).

101011110221 is a wasteful number, since it uses less digits than its factorization.

101011110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121261868 (or 121261861 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101011110221 its reverse (122011110101), we get a palindrome (223022220322).

The spelling of 101011110221 in words is "one hundred one billion, eleven million, one hundred ten thousand, two hundred twenty-one".