101011010221 has 8 divisors (see below), whose sum is σ = 115993504800. Its totient is φ = 86995128240.

The previous prime is 101011010203. The next prime is 101011010279. The reversal of 101011010221 is 122010110101.

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

It is a de Polignac number, because none of the positive numbers 2^k-101011010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101011010198 and 101011010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011010281) 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, 241652926 + ... + 241653343.

It is an arithmetic number, because the mean of its divisors is an integer number (14499188100).

Almost surely, 2^101011010221 is an apocalyptic number.

101011010221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101011010221 is a deficient number, since it is larger than the sum of its proper divisors (14982494579).

101011010221 is a wasteful number, since it uses less digits than its factorization.

101011010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483306299.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101011010221 its reverse (122010110101), we get a palindrome (223021120322).

The spelling of 101011010221 in words is "one hundred one billion, eleven million, ten thousand, two hundred twenty-one".