101010011221 has 32 divisors (see below), whose sum is σ = 118522994688. Its totient is φ = 84305774400.

The previous prime is 101010011209. The next prime is 101010011231. The reversal of 101010011221 is 122110010101.

It is a cyclic number.

It is not a de Polignac number, because 101010011221 - 2¹¹ = 101010009173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101010011198 and 101010011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010011231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13316796 + ... + 13324378.

It is an arithmetic number, because the mean of its divisors is an integer number (3703843584).

Almost surely, 2^101010011221 is an apocalyptic number.

It is an amenable number.

101010011221 is a deficient number, since it is larger than the sum of its proper divisors (17512983467).

101010011221 is a wasteful number, since it uses less digits than its factorization.

101010011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8001.

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

Adding to 101010011221 its reverse (122110010101), we get a palindrome (223120021322).

The spelling of 101010011221 in words is "one hundred one billion, ten million, eleven thousand, two hundred twenty-one".