101111010010221 has 16 divisors (see below), whose sum is σ = 137951373637440. Its totient is φ = 65839026570240.

The previous prime is 101111010010163. The next prime is 101111010010261. The reversal of 101111010010221 is 122010010111101.

It is not a de Polignac number, because 101111010010221 - 2¹⁰ = 101111010009197 is a prime.

It is a super-2 number, since 2×101111010010221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101111010010197 and 101111010010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111010010261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8133325 + ... + 16382093.

It is an arithmetic number, because the mean of its divisors is an integer number (8621960852340).

Almost surely, 2^{101111010010221} is an apocalyptic number.

It is an amenable number.

101111010010221 is a deficient number, since it is larger than the sum of its proper divisors (36840363627219).

101111010010221 is an equidigital number, since it uses as much as digits as its factorization.

101111010010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8343836.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101111010010221 its reverse (122010010111101), we get a palindrome (223121020121322).

The spelling of 101111010010221 in words is "one hundred one trillion, one hundred eleven billion, ten million, ten thousand, two hundred twenty-one".