101101010221 has 4 divisors (see below), whose sum is σ = 101102155200. Its totient is φ = 101099865244.

The previous prime is 101101010209. The next prime is 101101010239. The reversal of 101101010221 is 122010101101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101101010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101101010198 and 101101010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101101010281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427861 + ... + 620698.

It is an arithmetic number, because the mean of its divisors is an integer number (25275538800).

Almost surely, 2^101101010221 is an apocalyptic number.

It is an amenable number.

101101010221 is a deficient number, since it is larger than the sum of its proper divisors (1144979).

101101010221 is an equidigital number, since it uses as much as digits as its factorization.

101101010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144978.

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

Adding to 101101010221 its reverse (122010101101), we get a palindrome (223111111322).

The spelling of 101101010221 in words is "one hundred one billion, one hundred one million, ten thousand, two hundred twenty-one".