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101022230220 = 223529315233581
BaseRepresentation
bin101111000010101100…
…1001110011011001100
3100122202102011000111020
41132011121032123030
53123343142331340
6114224200554140
710204265534352
oct1360531163314
9318672130436
10101022230220
113993046286a
12176b4182950
1396ac5311b2
144c64b177d2
152963d5c9d0
hex178564e6cc

101022230220 has 192 divisors, whose sum is σ = 302717399040. Its totient is φ = 25116134400.

The previous prime is 101022230219. The next prime is 101022230233. The reversal of 101022230220 is 22032220101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101022230220.

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 63 ways as a sum of consecutive naturals, for example, 28208830 + ... + 28212410.

It is an arithmetic number, because the mean of its divisors is an integer number (1576653120).

Almost surely, 2101022230220 is an apocalyptic number.

101022230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101022230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151358699520).

101022230220 is an abundant number, since it is smaller than the sum of its proper divisors (201695168820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101022230220 is a wasteful number, since it uses less digits than its factorization.

101022230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176 (or 4174 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 101022230220 its reverse (22032220101), we get a palindrome (123054450321).

The spelling of 101022230220 in words is "one hundred one billion, twenty-two million, two hundred thirty thousand, two hundred twenty".