101031420221 has 16 divisors (see below), whose sum is σ = 104093472000. Its totient is φ = 97998595200.

The previous prime is 101031420209. The next prime is 101031420283. The reversal of 101031420221 is 122024130101.

It is a cyclic number.

It is not a de Polignac number, because 101031420221 - 2³⁰ = 99957678397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101031420221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101031422221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13221920 + ... + 13229558.

It is an arithmetic number, because the mean of its divisors is an integer number (6505842000).

Almost surely, 2^101031420221 is an apocalyptic number.

It is an amenable number.

101031420221 is a deficient number, since it is larger than the sum of its proper divisors (3062051779).

101031420221 is a wasteful number, since it uses less digits than its factorization.

101031420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101031420221 its reverse (122024130101), we get a palindrome (223055550322).

The spelling of 101031420221 in words is "one hundred one billion, thirty-one million, four hundred twenty thousand, two hundred twenty-one".