101221010030 has 32 divisors (see below), whose sum is σ = 208303786944. Its totient is φ = 34691394816.

The previous prime is 101221010027. The next prime is 101221010041. The reversal of 101221010030 is 30010122101.

It is a junction number, because it is equal to n+sod(n) for n = 101221009993 and 101221010020.

It is a congruent number.

It is an unprimeable number.

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, 79967 + ... + 456986.

It is an arithmetic number, because the mean of its divisors is an integer number (6509493342).

Almost surely, 2^101221010030 is an apocalyptic number.

101221010030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221010030 is an abundant number, since it is smaller than the sum of its proper divisors (107082776914).

101221010030 is a wasteful number, since it uses less digits than its factorization.

101221010030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539660.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101221010030 its reverse (30010122101), we get a palindrome (131231132131).

The spelling of 101221010030 in words is "one hundred one billion, two hundred twenty-one million, ten thousand, thirty".