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101223022220 = 22510946432579
BaseRepresentation
bin101111001000101011…
…1001011111010001100
3100200021101222022022222
41132101113023322030
53124301043202340
6114300132354512
710212254330645
oct1362127137214
9320241868288
10101223022220
1139a23836871
121774b475a38
139712004b28
144c836646cc
1529767c18b5
hex17915cbe8c

101223022220 has 24 divisors (see below), whose sum is σ = 214518519600. Its totient is φ = 40117747392.

The previous prime is 101223022207. The next prime is 101223022261. The reversal of 101223022220 is 22220322101.

It is a super-2 number, since 2×1012230222202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23214110 + ... + 23218469.

It is an arithmetic number, because the mean of its divisors is an integer number (8938271650).

Almost surely, 2101223022220 is an apocalyptic number.

101223022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101223022220 is an abundant number, since it is smaller than the sum of its proper divisors (113295497380).

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

101223022220 is a wasteful number, since it uses less digits than its factorization.

101223022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46432697 (or 46432695 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 101223022220 its reverse (22220322101), we get a palindrome (123443344321).

The spelling of 101223022220 in words is "one hundred one billion, two hundred twenty-three million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 46432579 92865158 185730316 232162895 464325790 928651580 5061151111 10122302222 20244604444 25305755555 50611511110 101223022220