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101222202220 = 22571193336877
BaseRepresentation
bin101111001000101010…
…0000011101101101100
3100200021100102122111121
41132101110003231230
53124300340432340
6114300103030324
710212244344166
oct1362124035554
9320240378447
10101222202220
1139a23326787
121774b13b3a4
139711aa8819
144c834cd936
1529766ad94a
hex1791503b6c

101222202220 has 48 divisors (see below), whose sum is σ = 215677885248. Its totient is φ = 39896881920.

The previous prime is 101222202197. The next prime is 101222202233. The reversal of 101222202220 is 22202222101.

It is a junction number, because it is equal to n+sod(n) for n = 101222202194 and 101222202203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2726422 + ... + 2763298.

It is an arithmetic number, because the mean of its divisors is an integer number (4493289276).

Almost surely, 2101222202220 is an apocalyptic number.

101222202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222202220 is an abundant number, since it is smaller than the sum of its proper divisors (114455683028).

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

101222202220 is a wasteful number, since it uses less digits than its factorization.

101222202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38890 (or 38888 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 101222202220 its reverse (22202222101), we get a palindrome (123424424321).

The spelling of 101222202220 in words is "one hundred one billion, two hundred twenty-two million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 1933 3866 7732 9665 19330 36877 38660 73754 137243 147508 184385 274486 368770 548972 686215 737540 1372430 2618267 2744860 5236534 10473068 13091335 26182670 52365340 71283241 142566482 285132964 356416205 712832410 1425664820 5061110111 10122220222 20244440444 25305550555 50611101110 101222202220