1010101000221 has 96 divisors (see below), whose sum is σ = 1556703802368. Its totient is φ = 630274659840.

The previous prime is 1010101000189. The next prime is 1010101000231. The reversal of 1010101000221 is 1220001010101.

It is a happy number.

It is not a de Polignac number, because 1010101000221 - 2⁵ = 1010101000189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010101000231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 414484215 + ... + 414486651.

It is an arithmetic number, because the mean of its divisors is an integer number (16215664608).

Almost surely, 2^{1010101000221} is an apocalyptic number.

It is an amenable number.

1010101000221 is a deficient number, since it is larger than the sum of its proper divisors (546602802147).

1010101000221 is a wasteful number, since it uses less digits than its factorization.

1010101000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2968 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1010101000221 its reverse (1220001010101), we get a palindrome (2230102010322).

The spelling of 1010101000221 in words is "one trillion, ten billion, one hundred one million, two hundred twenty-one", and thus it is an aban number.